This section includes the abbreviations and field markers as given in the orginal print dictionary, and also a list of relevant fields sorted to assist in searching the on-line version.
ABBREVIATIONS AND FIELD MARKERS USED IN THE DICTIONARY
Subject Field Markers
| ABBREVIATIONS AND FIELD MARKERS USED IN THE DICTIONARY | |||||
| a., adj. | Adjective | Bac: | Bacteriology | ||
| A: | Archaism; ancient; in former use | Bak: | Baking | ||
| Abs. | Absolutely, absolute use | Ball: | Ballistics | ||
| Ac: | Acoustics | Bank: | Banking | ||
| acc. | Accusative | Baseball | |||
| Adm: | Administration | B. Hist: | Bible History | ||
| adv. | Adverb, adverbial | Bib: | Bibliography | ||
| Adv.phr. | Adverbial phrase | Bill: | Billiards | ||
| Aer: | Aeronautics | Bio-Ch: | Biochemistry | ||
| Agr: | Agriculture | Biol: | Biology | ||
| A. Hist: | Ancient history | Bookb: | Bookbinding | ||
| Alg: | Algebra | Book-k: | Book-keeping | ||
| Algae | Bootm: | Bootmaking | |||
| Amph: | Amphibia | Bot: | Botany | ||
| Anat: | Anatomy | Bowls | |||
| Anglo-W: | Anglo-Welsh | Box: | Boxing | ||
| Ann: | Annelida | Breed: | Breeding | ||
| Ant: | Antiquity, -ies | Brew: | Brewing | ||
| Anthr: | Anthropology | Brickm: | Brickmaking | ||
| Ap: | Apiculture | ||||
| approx. | Approximately | card. a. | Cardinal adjective | ||
| Ar: | Arithmetic | Cards | |||
| Arach: | Arachnida | Carp: | Carpentry | ||
| Arb: | Arboriculture | Cav: | Cavalry | ||
| Arch: | Architecture | Cer: | Ceramics | ||
| Archeol: | Archaeology | Cf. | Refer to | ||
| Arm: | Armour | Ch: | Chemistry | ||
| Arms | Chr: | Chronology | |||
| Art: | Art | Cin: | Cinematography | ||
| Artil: | Artillery | Civ: | Civilisation | ||
| Astr: | Astronomy | Civ.E: | Civil Engineering | ||
| Astrol: | Astrology | Cl: | Classical | ||
| Atom.Ph: | Atomic physics | Clockm: | Clock and watch making | ||
| attrib. | Attributive | Cmptr: | Computer studies | ||
| Austr: | Australia; Australian | Coel: | Coelenterata | ||
| Aut: | Automobilism | cogn. acc | Cognate accusative | ||
| aux: | Auxiliary | Coll: | Collective | ||
| Av: | Aviation | Com: | Commerce | ||
| comb.fm. | Combining form | ||||
| B: | Biblical; Bible | Comest: | Comestibles | ||
| comp. | Comparative | ||||
| Conc: | Concrete | ||||
| xv | |||||
| Conch: | Conchology | Exp: | Explosives | ||
| condit. | Conditional | ||||
| conj. | Conjunction | f | Feminine | ||
| conj. like | Conjugated like | F: | Familiar, colloquial | ||
| Const: | Construction | Farr: | Farriery | ||
| Coop: | Cooperage | Fb: | Football | ||
| Corr: | Correspondence | Fenc: | Fencing | ||
| Ferns | |||||
| Cost: | Costume, clothing | Fin: | Finance | ||
| cp. | Compare | Fish: | Fishing | ||
| Cr: | Cricket | For: | Forestry | ||
| Crust: | Crustacea | Fort: | Fortification | ||
| Cryst: | Crystallography | Fr. | French; France | ||
| Cu: | Culinary; cuisine | fu. | Future | ||
| Cust: | Customs | Fuel | |||
| Cy: | Cycles; cycling | Fung: | Fungi | ||
| Furn: | Furniture | ||||
| Danc: | Dancing | ||||
| dat. | Dative | Games | |||
| def. | Definite | Gasm: | Gasmaking | ||
| def. | Defective | Geog: | Geography | ||
| dem. | Demonstrative | Geol: | Geology | ||
| Dent: | Dentistry | Geom: | Geometry | ||
| Dial: | Dialect | ger. | Gerund | ||
| dim: | Diminutive | Glassm: | Glassmaking | ||
| Dipl: | Diplomacy | Gr. | Greek | ||
| Dist: | Distilling | Gr.Alph: | Greek Alphabet | ||
| Dom. Ec: | Domestic Economy | Gr.Ant: | Greek Antiquity | ||
| Draw: | Drawing | Gr. Civ: | Greek Civilization | ||
| Dressm: | Dressmaking | Gram: | Grammar | ||
| Dy: | Dyeing | Gramophones | |||
| Gym: | Gymnastics | ||||
| E. | East | ||||
| E: | Engineering | Hairdr: | Hairdressing | ||
| Ecc: | Ecclesiastical | Harn: | Harness | ||
| Echin: | Echinodermata | Hebrew Alph. | Hebrew Alphabet | ||
| Ecol: | Ecology | Her: | Heraldry | ||
| e.g. | For example | Hist: | History; historical | ||
| El: | Electricity; electrical | Hor: | Horology | ||
| El.-Ch: | Electro- Chemistry | Hort: | Horticulture | ||
| El.E: | Electrical engineering | Hum: | Humorous | ||
| EL-Ch: | Electro- Chemistry | Husb: | Husbandry | ||
| El.E: | Electrical engineering | Hyd: | Hydraulics; hydrostatics | ||
| Eng. | English; England | ||||
| Eng. Hist. | English history | i. | Intransitive | ||
| Eng. Lit. | English literature | I.C.E: | Internal Combustion Engines | ||
| Eng Pln. | English place-name | Ich: | Ichthyology | ||
| Engr: | Engraving | imp. | Imperative | ||
| Ent: | Entomology | impers. | Impersonal | ||
| epith. | Epithet (adjective) | ind. | Indicative | ||
| Equit: | Equitation | Ind: | Industry | ||
| esp. | Especially | indef. | Indefinite | ||
| etc. | Et cetera | ind. t. | Indirectly transitive |
||
| Eth: | Ethics | Hairdr: | Hairdressing | ||
| Ethn: | Ethnology | Harn: | Harness | ||
| excl. | Exclamation; exclamative | Hebrew Alph. | Hebrew Alphabet | ||
| xvi | |||||
| inf. | Infinitive | M.W: | Mid Wales | ||
| Ins: | Insurance | Myr: | Myriapods | ||
| int. | Interjection | Myth: | Myth and legend, mythology | ||
| interr. | Interrogative | ||||
| inv. | Invariable | n. | noun | ||
| Irish myth. | Irish mythology | N. | North | ||
| Irish Pln. | Irish place-name | N.Am: | North America | ||
| Iron: | Ironical | N.Arch: | Naval Architecture | ||
| Jew. | Jewish | Nat. Hist: | Natural History | ||
| Joc: | Jocular | Nau: | Nautical | ||
| Join: | Joinery | Nav: | Navigation | ||
| Journ: | Journalism | Navy | |||
| Jur: | Jurisprudence: law | N.E: | North East Wales | ||
| Needlew: | Needlework | ||||
| Knitting | neg. | Negative | |||
| neut. | Neuter | ||||
| Lap: | Lapidary Arts | nom. | Nominative | ||
| Laund: | Laundering | Num: | Numismatics | ||
| Leath: | Leatherwork | num. a. | Numeral adjective | ||
| Lib: | Library studies | N.W. | North West Wales | ||
| Ling: | Linguistics | ||||
| Lit: | Literary use; literature;literary | O: | Obsolescent | ||
| Lith: | Lithography | Obst: | Obstetrics | ||
| Locksm: | Locksmithery | Oc: | Oceanography | ||
| Log: | Logic | occ. | Occasionally | ||
| Lt. | Latin | Onomat: | Onomatopoeia | ||
| Opt: | Optics | ||||
| m | Masculine | Orn: | Ornithology | ||
| Magn: | Magnetism | Ost: | Ostreiculture | ||
| Mapm: | Mapmaking | ||||
| Mch: | Machines | p. | Participle | ||
| Meas: | Weights and Measures | P. | Popular; slang | ||
| Mec: | Mechanics | Paint: | Painting trade | ||
| Mec. E: | Mechanical Engineering | Pal: | Paleography | ||
| Med: | Medicine | Paleont: | Paleontology | ||
| Mediev: | Medieval | Paperm: | Papermaking | ||
| Metall: | Metallurgy | Parl: | Parliament | ||
| Metalw: | Metalworking | Pat: | Patagonian Welsh | ||
| Metaph: | Metaphysics | Path: | Pathology | ||
| Meteor: | Meteorology | p.d. | Past descriptive; imperfect tense | ||
| Mil | Military | Pej: | Pejorative | ||
| Mill: | Milling | Perf. | Perfect | ||
| Min: | Mining and quarrying | pers. | Person; personal | ||
| Miner: | Mineralogy | Ph: | Physics | ||
| M.Ins: | Maritime insurance | Pharm: | Pharmacy | ||
| Moham: | Mohammedan | Ph. Geog: | Physical Geography | ||
| Moll: | Molluscs | Phil | Philosophy | ||
| Moss: | Mosses and lichens | Phot: | Photography | ||
| Mount: | Mountaineering | Phot.Engr: | Photo-engraving; process work | ||
| Mth: | Mathematics | phr. | Phrase | ||
| Mus: | Music | p. | Participle | ||
| mut. | Mutation | Physiol: | Physiology | ||
| Pisc: | Pisciculture | ||||
| xvii | |||||
| pl | Plural | ||||
| Pln. | Place-name | Sculp: | Sculpture | ||
| Plumb: | Plumbing | S.E. | South-East Wales | ||
| P.N: | Public notices | Ser: | Sericulture | ||
| Poet: | Poetical | Singular | |||
| Pol: | Politics | Sm.a. | Small arms | ||
| Pol. Ec: | Political Economy | s.o. | Someone | ||
| poss. | Possessive | Soapm: | Soapmaking | ||
| Post: | Postal Service | Social: | Sociology | ||
| p.p. | Past participle | Sp: | Sport | ||
| pr. | Present | Spong: | Sponges | ||
| pred. | Predicate; predicative | St.Exch. | Stock Exchange | ||
| pref. | Prefix | sth. | Something | ||
| Prehist: | Prehistory | Stonew: | Stoneworking | ||
| prep. | Preposition | sub. | Subjunctive | ||
| prep.phr. | Prepositional phrase | suff. | Suffix | ||
| Pr.n. | Proper name | Sug. -R | Sugar-Ref in ing | ||
| pron. | Pronoun | sup. | Superlative | ||
| Pros: | Prosody | Surg: | Surgery | ||
| Prot: | Protozoa | Surv: | Surveying | ||
| Prov: | Proverb | S.W. | South-West Wales | ||
| pr.p. | Present participle | Swim: | Swimming | ||
| Psy: | Psychology | ||||
| Publ: | Publishing | Tail- | Tailoring | ||
| Pyr: | Pyrotechnics | Tan: | Tanning | ||
| Tchn: | Technical | ||||
| Qu: | Quarrying | Ten: | Tennis | ||
| q.v. | See this word | Tex: | Textiles | ||
| Tg: | Telegraphy | ||||
| Rac: | Racing | Th: | Theatre | ||
| Rad.A: | Radioactivity | Theol: | Theology | ||
| Rail: | Railways | thg. | Thing | ||
| R. C Ch: | Roman Catholic Church | Tls: | Tools | ||
| rel. | Relative | Toil: | Toilet; make-up | ||
| Rel: | Religion(s) | Town.P: | Town-Planning | ||
| Rel.H: | Religious History | Tp: | Telephony | ||
| Rept: | Reptiles | tr. | Transitive | ||
| Rh: | Rhetoric | Trans: | Transport | ||
| rhn. | Rhywun = Someone | Trig: | Trigonometry | ||
| rhth. | Rhywbeth = Something | Turf | |||
| rn. | Rhywun – Someone | T.V: | Television | ||
| Rockets | Typ: | Typography | |||
| Rom. | Roman | Typewr: | Typewriting | ||
| Ropem: | Ropemaking | ||||
| Row: | Rowing | U.S: | United States | ||
| rth. | Rywbeth = Something | usu. | Usually | ||
| R.T.M. | Registered trademark | ||||
| V. | Verb | ||||
| S. | South | V: | Vulgar; not in polite use | ||
| S.a. | See also | Veh: | Vehicles | ||
| Sch: | Schools and Universities | Ven: | Venery | ||
| Scot: | Scottish | Vet: | Veterinary science | ||
| Scot. Hist. | Scottish history | v.i. | Intransitive verb | ||
| Scot. Pln. | Scottish place-name | v. ind. t. | Verb indirectly transitive | ||
| Scouting | Vit: | Viticulture | |||
| xviii | |||||
| vn. | verbnoun | X | X Rays | ||
| Voc: | Vocative | Y | Yachting | ||
| v.pr. | Pronominal verb | Z | Zoology | ||
| v.t. | Transitive verb | * | Neologism | ||
| (*) | Neological use | ||||
| W. | (i) West (ii) Welsh | [ ] | Enclose optional letter or word | ||
| W. Hist. | Welsh history | ||||
| W. Lit. | Welsh literature | ||||
| W. Pin. | Welsh place-name | The vertical line | in a Welsh word indicates that the main stress falls on the vowel following it. | |||
| Wine-m: | Winemaking | ||||
| Wr: | Wrestling | ||||
| W. Tel: | Wireless Telephony and Telegraphy | ||||
| W. Tg: | Wireless Telegraphy | ||||
| W. Tp: | Wireless Telephony | ||||
| xix | |||||
| A.Furn: | Archaic Furniture | Dodrefn Hynafol |
| A.Geog: | Archaic Geography | Daearyddiaeth Hynafol |
| A.Meas: | Archaic Measurements | Mesuriadau Hynafol |
| A.Med: | Archaic Medicine | Meddygaeth Hynafol |
| A.Ph: | Archaic Physics | Ffiseg Hynafol |
| A: | Archaism; ancient; in former use | Ymadrodd Hynafol; defnydd hynafol |
| Ac: | Acoustics | Acwsteg |
| Adm: | Administration | Gweinyddiaeth |
| Admin: | Administration | Gweinyddiaeth |
| Aer: | Aeronautics | Awyrennaeth |
| Aerodynamics: | Aerodynamics | Aerodynameg |
| Agr: | Agriculture | Amaeth |
| Alg: | Algebra | Algebra |
| Algae: | Algae | Algâu |
| Alph: | Alphabet | y Wyddor |
| Amph: | Amphibia | Amffibia |
| Amphib: | Amphibia | Amffibia |
| Anat: | Anatomy | Anatomeg |
| Anglican: | Anglican | Anglicanaidd |
| Ann: | Annelida | Annelida |
| Ant: | Antiquity | Hynafiaethau |
| Anthr: | Anthropology | Anthropoleg |
| Ap: | Apiculture | Cadw Gwenyn |
| Ar: | Arithmetic | Rhifyddeg |
| Arach: | Arachnida | Arachnida |
| Arb: | Arboriculture | Tyfu Coed |
| Arch: | Architecture | Pensaernïaeth |
| Archeol: | Archaeology | Archaeoleg |
| Archery: | Archery | Saethyddiaeth |
| Archives: | Archives | Archifau |
| Arm: | Armour | Arfwisg |
| Arms: | Arms | Arfau |
| Art: | Art | Celf |
| Art: Hist: | Art History | Hanes Celf |
| Artil: | Artillery | Magnelau |
| Artill: | Artillery | Magnelau |
| Astr: | Astronomy | Seryddiaeth |
| Astrol: | Astrology | Sêr-ddewiniaeth |
| Astron: | Astronomy | Seryddiaeth |
| Astronautics: | Astronautics | Teithio’r Gofod |
| Athletics: | Athletics | Athletau |
| Atom.Ph.Meas: | Atomic physics measures | Mesuriadau Ffiseg Atomig |
| Atom.Ph: | Atomic physics | Ffiseg Atomig |
| Aus: | Australia; Australian | Awstralia |
| Aust: | Australia; Australian | Awstralia |
| Austr.P: | Australian slang | Awstralia |
| Austr: | Australia; Australian | Awstralia |
| Austral: | Australia; Australian | Awstralia |
| Aut: | Automobilism | Moduro |
| Av.Hist: | Aviation History | Hanes Awyrennau |
| Av: | Aviation | Awyrennau |
| B.Hist: | Bible History | Hanes Beiblaidd |
| B: | Biblical; Bible | Beiblaidd; y Beibl |
| Bac: | Bacteriology | Bacterioleg |
| Bact: | Bacteriology | Bacterioleg |
| Bak: | Baking | Pobi |
| Ball: | Ballistics | Balisteg |
| Ballet: | Ballet | Bale |
| Bank: | Banking | Bancio |
| Baseball: | Baseball | Pêl Fas |
| Basketball: | Basketball | Pêl Fasged |
| Basketmaking: | Basketmaking | Gwneud Basgedi |
| Bellringing: | Bellringing | Canu Clychau |
| Bev: | Beverage | Diod |
| Bill: | Billiards | Biliards |
| Bio-Ch: | Biochemistry | Biocemeg |
| Biol.Z: | Biology and Zoology | Bioleg a Sŵoleg |
| Biol: | Biology | Bioleg |
| Bookb: | Bookbinding | Rhwymo Llyfrau |
| Book-k: | Book-keeping | Cadw Cyfrifon |
| Bootm: | Bootmaking | Crefft y Crydd |
| Bot: | Botany | Botaneg |
| Bowls: | Bowls | Bowls |
| Box: | Boxing | Bocsio |
| Breed: | Breeding | Bridio |
| Brew: | Brewing | Bragu |
| Brickm: | Brickmaking | Gwneud brics |
| Bridge: | Bridge | Bridge |
| Buddhist: | Buddhist | Bwdhaidd |
| Canada: | Canada | Canada |
| Canoeing: | Canoeing | Canŵio |
| Cards: | Cards | Cardiau |
| Carp: | Carpentry | Gwaith Coed |
| Cer: | Ceramics | Cerameg |
| Ch: | Chemistry | Cemeg |
| Chess: | Chess | Gwyddbwyll |
| Cin: | Cinematography | Sinematograffi |
| Civ.E: | Civil Engineering | Peirianneg Sifil |
| Civ: | Civilisation | Gwareiddiad |
| Class.Myth: | Classical Mythology | Mytholeg Glasurol |
| Clockm: | Clock and watch making | Gwneud Clociau a Watsys |
| Cmptr: | Computer studies | Astudiaethau Cyfrifiadurol |
| Cockfighting: | Cockfighting | Ymladd Ceiliogod |
| Coel: | Coelenterata | Coelenterata |
| Com: | Commerce | Masnach |
| Comest: | Comestibles | Bwydydd |
| Conch: | Conchology | Cregynneg |
| Const: | Construction | Adeiladu |
| Constr: | Construction | Adeiladu |
| Coop: | Cooperage | Cowperiaeth |
| Corr: | Correspondence | Gohebiaeth |
| Cosmetics: | Cosmetics | Coluron |
| Cost: | Costume | Gwisgoedd |
| Cr: | Cricket | Criced |
| Craft: | Craft | Crefft |
| Cribbage: | Cribbage | Cribej |
| Croquet: | Croquet | Croquet |
| Crust: | Crustacea | Cramenogion |
| Cryst: | Crystallography | Grisialeg |
| Cu: | Culinary; cuisine | Coginio |
| Cul: | Culinary | Coginio |
| Curling: | Curling | Cwrlo |
| Cust: | Customs | Tollau |
| Cy: | Cycles; cycling | Beiciau; beicio |
| Danc: | Dancing | Dawns |
| Darts: | Darts | Dartiau |
| Dent: | Dentistry | Deintyddiaeth |
| Dial: | Dialect | Tafodiaith |
| Dice: | Dice | Disiau |
| Dip: | Diplomacy | Diplomyddiaeth |
| Dipl: | Diplomacy | Diplomyddiaeth |
| Dist: | Distilling | Distyllu |
| Dom.Ec: | Domestic Economy | Gwyddor Tŷ |
| Dominoes: | Dominoes | Dominos |
| Draughts: | Draughts | Drafftiau |
| Draw: | Drawing | Lluniadu |
| Dressm: | Dressmaking | Gwneud dillad |
| Drink: | Drink | Diod |
| Dy: | Dyeing | Llifo |
| E: | Engineering | Peirianneg |
| Ec: | Ecclesiastical | Eglwysig |
| Ecc.Arch: | Ecclesiastical Architecture | Pensaernïaeth Eglwysig |
| Ecc.Hist: | Ecclesiastical History | Hanes Eglwysig |
| Ecc: | Ecclesiastical | Eglwysig |
| Ecc: Etc: | Ecclesiastical et cetera | Eglwysig ac ati |
| Eccl: | Ecclesiastical | Eglwysig |
| Echin: | Echinodermata | Ecinodermiaid |
| Ecol: | Ecology | Ecoleg |
| Econ.Hist: | Economic History | Hanes Economaidd |
| Econ: | Economy | Economeg |
| Ed: | Education | Addysg |
| El.E: | Electrical engineering | Peirianneg drydanol |
| El.Meas: | Electrical measurments | Mesuriadau trydanol |
| El.Mus: | Electronic music | Cerddoriaeth electronig |
| El: | Electricity; electrical | Trydan; trydanol |
| Electronics: | Electronics | Electroneg |
| Eng.Geog: | English Geography | Daearyddiaeth Lloegr |
| Eng.Hist: | English History | Hanes Lloegr |
| Eng.Lit: | English Literature | Llenyddiaeth Saesneg |
| Eng: | English; England | Lloegr |
| Engr: | Engraving | Ysgythru |
| Ent: | Entomology | Entomoleg |
| Equit: | Equitation | Marchogaeth |
| Eth: | Ethics | Moeseg |
| Ethn: | Ethnology | Ethnoleg |
| Exp: | Explosives | Ffrwydron |
| Falconry: | Falconry | Heboga |
| Farr: | Farriery | Gwaith y Ffariar |
| Fash: | Fashion | Ffasiwn |
| Fb.Pools: | Football pools | Pyllau pêl-droed |
| Fb: | Football | Pêl-droed |
| Fenc: | Fencing | Ymladd Cleddyfau |
| Fence: | Fencing | Ymladd Cleddyfau |
| Fencing: | Fencing | Ymladd Cleddyfau |
| Fin: | Finance | Cyllid |
| Fire-fighting: | Fire-fighting | Ymladd tân |
| Fish: | Fishing | Pysgota |
| Footb.pools: | Football pools | Pyllau pêl-droed |
| For: | Forestry | Coedwigaeth |
| Fort: | Fortification | Amddiffynfeydd |
| Fr.Adm: | French Administration | Gweinyddiaeth Ffrainc |
| Fr.Can: | French Canada | Canada Ffrengig |
| Fr.Hist: | French History | Hanes Ffrainc |
| Fr.Lit: | French Literature | Llenyddiaeth Ffrangeg |
| Fr.Pol: | French Politics | Gwleidyddiaeth Ffrainc |
| Fr: | French; France | Ffrainc |
| Fung: | Fungi | Ffyngau |
| Fungus: | Fungus | Ffwng |
| Furn: | Furniture | Dodrefn |
| Game: | Game | Gêm |
| Games: | Games | Gemau |
| Gaming: | Gaming | Hapchwarae |
| Gasm: | Gasmaking | Gwneud Nwy |
| Genealogy: | Genealogy | Achyddiaeth |
| Geog: | Geography | Daearyddiaeth |
| Geol: | Geology | Daeareg |
| Geom: | Geometry | Geometreg |
| Glassm: | Glassmaking | Gwaith Gwydr |
| Goeg: | Geography | Daearyddiaeth |
| Gold: | Gold | Aur |
| Golf: | Golf | Golff |
| Gr.Alph: | Greek Alphabet | y Wyddor Groeg |
| Gr.Ant: | Greek Antiquity | Hynafiaethau Groeg |
| Gr.Arch: | Greek Architecture | Pensaernïaeth Groeg |
| Gr.Gram: | Greek Grammar | Gramadeg Groeg |
| Gr.Hist: | Greek History | Hanes Groeg |
| Gr.Lit: | Greek Literature | Llenyddiaeth Groeg |
| Gr.Myth: | Greek Mythology | Mytholeg Groeg |
| Gr.Phil: | Greek Philosophy | Athroniaeth Groeg |
| Gr.Rom.Ant: | Greek and Roman Antiquities | Hynafiaethau Groeg a Lladin |
| Gr.Th: | Greek Theatre | Theatr Groeg |
| Gr: | Greek | Groeg |
| Gramophone: | Gramophone | Gramoffon |
| Gramophones: | Gramophones | Gramoffonau |
| Gym: | Gymnastics | Gymnasteg |
| Hairdr: | Hairdressing | Trin Gwallt |
| Harn: | Harness | Harnais |
| Her: | Heraldry | Herodraeth |
| Hindu: | Hindu | Hindŵaidd |
| Hist: | History | Hanes |
| Hockey: | Hockey | Hoci |
| Hort: | Horticulture | Garddwriaeth |
| Hosiery: | Hosiery | Hosanwaith |
| Husb: | Husbandry | Hwsmonaeth |
| Hyd.E: | Hydro-electricity | Trydan Dŵr |
| Hyd.El: | Hydro-electricity | Trydan Dŵr |
| Hyd: | Hydraulics; hydrostatics | Hydroleg; hydrostateg |
| Hyg: | Hygiene | Hylendid |
| I.C.E: | Internal Combustion Engines | Peiriant Tanio Mewnol |
| Ich: | Ichthyology | Pysgodeg |
| Immunology: | Immunology | Imiwnoleg |
| Ind.Hist: | Industrial History | Hanes Diwydiannol |
| Ind: | Industry | Diwydiant |
| Ins: | Insurance | Yswiriant |
| Ir.Geog: | Irish Geography | Daearyddiaeth Iwerddon |
| Ir.Hist: | Irish History | Hanes Iwerddon |
| Irish: | Irish | Iwerddon |
| Jazz: | Jazz | Jazz |
| Jew.Rel: | Jewish Religion | Crefydd Iddewig |
| Jew: | Jewish Religion | Crefydd Iddewig |
| Join: | Joinery | Saernïaeth |
| Journ: | Journalism | Newyddiaduraeth |
| Jur: | Jurisprudence; law | Cyfreitheg; y Gyfraith |
| Knitting: | Knitting | Gweu |
| Lap: | Lapidary Arts | Crefftau gemwaith |
| Lat.Lit: | Latin Literature | Llenyddiaeth Ladin |
| Laund: | Laundering | Golchi Dillad |
| Leath: | Leatherwork | Gwaith Lledr |
| Lib: | Library studies | Astudiaethau Llyfrgell |
| Ling: | Linguistics | Ieithyddiaeth |
| Lit.Hist: | Literary History | Hanes Llenyddol |
| Lit: | Literary use; literature; literary | Defnydd llenyddol; llenyddiaeth; llenyddol |
| Lith: | Lithography | Lithograffi |
| Locksm: | Locksmithery | Gwneud Cloeau |
| Log: | Logic | Rhesymeg |
| Lt.phr: | Latin phrase | ymadrodd Lladin |
| Lt: | Latin | Lladin |
| M.Ins: | Maritime insurance | Yswiriant Morol |
| Magn: | Magnetism | Magnetaeth |
| Mapm: | Mapmaking | Gwneud Mapiau |
| Math: | Mathematics | Mathemateg |
| Mch: | Machines | Peiriannau |
| Meas: | Weights and Measures | Pwysau a Mesurau |
| Mec.E: | Mechanical Engineering | Peirianneg Fecanyddol |
| Mec: | Mechanics | Mecaneg |
| Mech: | Mechanical | Mecanyddol |
| Med: | Medicine | Meddygaeth |
| Med: A: | Medical in former use | Meddygaeth mewn defnydd blaenorol |
| Med: Fung: | Medicine and Fungi | Meddygaeth a Ffyngau |
| Mediev.Phil: | Medieval Philosophy | Athroniaeth y Canol Oesoedd |
| Metall: | Metallurgy | Meteleg |
| Metalw: | Metalworking | Gwaith metel |
| Metaph: | Metaphysics | Metaffiseg |
| Meteor: | Meteorology | Meteoroleg |
| Methodology: | Methodology | Methodoleg |
| Mil.E: | Military Engineering | Peirianneg Filwrol |
| Mil: | Military | Milwrol |
| Mill: | Milling | Melino |
| Min: | Mining and quarrying | Mwyngloddio a Chwarela |
| Miner: | Mineralogy | Mwynoleg |
| Minting: | Minting | Bathu |
| Moll: | Molluscs | Molysgiaid |
| Motor: | Motoring | Moduro |
| Mount: | Mountaineering | Mynydda |
| Mth: | Mathematics | Mathemateg |
| Mth: Geom: | Mathematics and Geometry | Mathemateg a Geometreg |
| Mth: Ph: | Mathematics and Physics | Mathemateg a Ffiseg |
| Mus: | Music | Cerddoriaeth |
| Myr: | Myriapods | Amldroedion |
| Myth: | Myth and legend, mythology | Myth a chwedl, mytholeg |
| N.Am: | North America | Gogledd America |
| N.Arch: | Naval Architecture | Pensaernïaeth Lyngesol |
| N.Eng: | New England | New England |
| N.Z: | New Zealand | Seland Newydd |
| Nat.Hist: | Natural History | Byd Natur |
| Nau: | Nautical | Morol |
| Naut: | Nautical | Morol |
| Nav.Hist: | Naval History | Hanes Llyngesol |
| Nav: | Navigation | Mordwyo |
| Navy: | Navy | Llynges |
| Needlew: | Needlework | Gwniadwaith |
| Num: | Numismatics | Niwmismateg |
| Obst: | Obstetrics | Obstetreg |
| Oc: | Oceanography | Eigioneg |
| Opt: | Optics | Opteg |
| Organ: | Organ | Organ |
| Orn: | Ornithology | Adareg |
| P.N: | Public notices | Hysbysiadau cyhoeddus |
| Paint: | Painting trade | Crefft paentio |
| Pal: | Paleography | Palaeograffeg |
| Paleont: | Paleontology | Palaeontoleg |
| Palmistry: | Palmistry | Darllen Dwylo |
| Paperm: | Papermaking | Gwneud Papur |
| Parl: | Parliament | Senedd |
| Path: | Pathology | Patholeg |
| Ph: | Physics | Ffiseg |
| Ph: Ch: | Physics and Chemistry | Ffiseg a Chemeg |
| Pharm: | Pharmacy | Fferylliaeth |
| Phil: | Philosophy | Athroniaeth |
| Philately: | Philately | Casglu Stampiau |
| Phot.Engr: | Photo-engraving; process work | Ysgythru ffotograffau; gwaith prosesu |
| Phot: | Photography | Ffotograffiaeth |
| Physiol: | Physiology | Ffisioleg |
| Pisc: | Pisciculture | Magu Pysgod |
| Plumb: | Plumbing | Plymio |
| Poetry: | Poetry | Barddoniaeth |
| Pol.Ec: | Political Economy | Economeg Wleidyddol |
| Pol.Hist: | Political History | Hanes Gwleidyddol |
| Pol: | Politics | Gwleidyddiaeth |
| Police: | Police | Heddlu |
| Post: | Postal Service | Gwasanaeth y Post |
| Prehist: | Prehistory | Cynhanes |
| Print: | Printing | Argraffu |
| Pros: | Prosody | Mydryddiaeth |
| Prov: | Proverb | Dihareb |
| Psy: | Psychology | Seicoleg |
| Psych: | Psychology | Seicoleg |
| Psychics: | Psychics | Seicig |
| Publ: | Publishing | Cyhoeddi |
| Pyr: | Pyrotechnics | Pyrotechneg |
| Quoits: | Quoits | Coetio |
| R.C.Ch: | Roman Catholic Church | Eglwys Babyddol |
| Rac: | Racing | Rasio |
| Radar: | Radar | Radar |
| Rail: | Railways | Rheilffyrdd |
| Rel.Arch: | Religious Architecture | Pensaernïaeth Eglwysig |
| Rel.H: | Religious History | Hanes Crefyddol |
| Rel.Hist: | Religious History | Hanes Crefyddol |
| Rel: | Religion(s) | Crefydd(au) |
| Rept: | Reptiles | Ymlusgiaid |
| Rh: | Rhetoric | Hanes Crefyddol |
| Rockets: | Rockets | Rocedi |
| Rom.Ant: | Roman Antiquities | Hanes Crefyddol |
| Rom.Calendar: | Roman Calendar | Hanes Crefyddol |
| Rom.Hist: | Roman History | Hanes Crefyddol |
| Rom.Jur: | Roman Jurisprudence | Cyfreitheg Rhufain |
| Rom.Mil: | Roman Military | Milwrol Rhufeinig |
| Rom.Rel: | Roman Religion(s) | Crefydd(au) Rhufeinig |
| Rom: | Roman | Hanes Crefyddol |
| Ropem: | Ropemaking | Gwneud Rhaffau |
| Row: | Rowing | Rhwyfo |
| Rowing: | Rowing | Rhwyfo |
| Rugby: | Rugby | Rygbi |
| Russ: | Russian | Rwsia |
| Sch: | Schools and Universities | Ysgolion a Phrifysgolion |
| Scot.Hist: | Scottish History | Hanes Crefyddol |
| Scot.Jur: | Scottish Jurisprudence | Cyfreitheg yr Alban |
| Scot.Lit: | Scottish Literature | Llenyddiaeth yr Alban |
| Scot: | Scottish | yr Alban |
| Scouting: | Scouting | Sgowtio |
| Sculp: | Sculpture | Cerflunio |
| Sculpt: | Sculpture | Cerflunio |
| Skating: | Skating | Sglefrio |
| Ski: | Skiing | Sgïo |
| Sm.a: | Small arms | Mân arfau |
| Sm: | Small arms | Mân arfau |
| Snooker: | Snooker | Snwcer |
| Soc.Adm: | Social Administration | Gweinyddiaeth Gyhoeddus |
| Social: | Social | Cymdeithasol |
| Sociol: | Sociology | Cymdeithaseg |
| Sp: | Sport | Chwaraeon |
| St.Exch: | Stock Exchange | Cyfnewidfa Stoc |
| Stat: | Statistics | Ystadegau |
| Statistics: | Statistics | Ystadegau |
| Stonew: | Stoneworking | Gwaith carreg |
| Sug.-R: | Sugar-Refining | Coethi Siwgr |
| Sug: | Sugar | Siwgr |
| Sug-R: | Sugar-Refining | Coethi Siwgr |
| Surfing: | Surfing | Syrffio |
| Surg: | Surgery | Llawfeddygaeth |
| Surv: | Surveying | Tirfesureg |
| Swim: | Swimming | Nofio |
| T.V: | Television | Teledu |
| Tail: | Tailoring | Gwaith Teiliwr |
| Tch: | Technical | Technegol |
| Tchn: | Technical | Technegol |
| Techn: | Technical | Technegol |
| Tel: | Telephony | Teleffoni |
| Ten: | Tennis | Tennis |
| Tex: | Textiles | Tecstilau |
| Tg: | Telegraphy | Telegraffiaeth |
| Th: | Theatre | Theatr |
| Theol: | Theology | Diwinyddiaeth |
| Tls: | Tools | Offer |
| Toil: | Toilet; make-up | Taclau ymolch; coluron |
| Toys: | Toys | Teganau |
| Tp: | Telephony | Teleffoni |
| Trans: | Transport | Trafnidiaeth |
| Trig: | Trigonometry | Trigonomeg |
| Turf: | Turf | Byd Rasio |
| TV: | Television | Teledu |
| Typ: | Typography | Argraffwaith |
| Typewr: | Typewriting | Teipiadura |
| U.S: | United States | Unol Daleithiau |
| Veh: | Vehicles | Cerbydau |
| Ven: | Venery | Hela |
| Vet: | Veterinary science | Milfeddygaeth |
| W.Anthr: | Welsh Anthropology | Hanes Crefyddol |
| W.Geog: | Welsh Geography | Daearyddiaeth Cymru |
| W.Gram: | Welsh Grammar | Gramadeg y Gymraeg |
| W.Hist: | Welsh History | Hanes Crefyddol |
| W.Jur: | Welsh Jurisprudence | Cyfreitheg Cymru |
| W.Lit: | Welsh Literature | Llenyddiaeth Gymraeg |
| W.Med: | Welsh Medicine | Meddygaeth Cymru |
| W.Mus: | Welsh Music | Cerddoriaeth Gymreig |
| W.Myth: | Welsh Mythology | Mytholeg Gymreig |
| W.Pros: | Welsh Prosody | Mydryddiaeth Gymraeg |
| W.Rel.Hist: | Welsh Religious History | Hanes Crefyddol |
| W.Tel: | Wireless Telephony and Telegraphy | Teleffoni a Thelegraffiaeth Ddiwifr |
| W.Tg: | Wireless Telegraphy | Telegraffiaeth Ddiwifr |
| W.Th: | Welsh Theatre | Theatr Gymreig |
| Weaving: | Weaving | Nyddu |
| Whaling: | Whaling | Hela Morfilod |
| Wr: | Wrestling | Ymaflyd Codwm |
| Y: | Yachting | Hwylio Cychod |
| Z: | Zoology | Sŵoleg |
| Z: Orn: | Zoology and Ornithology | Sŵoleg ac Adareg |