gwyllgi

gwyllgwn (plural)
gwyllgi
wyllgi (soft)
ngwyllgi

Either from gwyll (“twilight”) + ci (“dog”) or a variant form of gwylltgi from gwyllt (“wild”) and ci (“dog”).

Ymhlith atyniadau'r amgueddfa bydd storïwr yn adrodd hanes y Gwyllgi, un o gŵn du llên werin Cymru.

2012 August 12, “Amgueddfa werin dros dro yn Wrecsam”, in Cymru Fyw, BBC:

Among the museum's attractions will be a storyteller telling the history of the Gwyllgi, one of the black dogs of Welsh folklore.

(mythology) A hellhound from Welsh folklore, appearing as a large black mastiff.


rhwymyn tynhau

cy-noun

rhwymyn tynhau m (plural rhwymynnau tynhau)

rhwymynnau tynhau (plural)
rhwymyn tynhau
rwymyn tynhau (soft)


cystrawen

constrawennau (plural)
cystrawen
gystrawen (soft)
nghystrawen
chystrawen

From Middle Welsh kystrowen, from Proto-Brythonic *kustrawenn, from Vulgar Latin *cōnstrauenda, from Latin cōnstruenda.


gweithredol

cy-adj

gweithredol (feminine singular gweithredol, plural gweithredol, equative mor weithredol, comparative mwy gweithredol, superlative mwyaf gweithredol)

gweithredol (feminine singular)
gweithredol (plural)
mor weithredol (equative)
mwy gweithredol (comparative)
mwyaf gweithredol (superlative)
gweithredol
weithredol (soft)
ngweithredol


uniad setiau

uniadau setiau (plural)
uniad setiau
huniad setiau (prothesis-h)


rhigol

cy-noun

rhigol f or m (plural rhigolau or rhigolydd or rhigolion)

rhigolau (plural)
rhigolydd (plural)
rhigolion (plural)


parddu briallu

parddu briallu
barddu briallu (soft)
mharddu briallu
pharddu briallu

parddu (“smut”) + briallu (“primroses”).

Cymdeithas Edward Llwyd
w:Cymdeithas Edward Llwyd

Gwasg Carreg Gwalch
w:Gwasg Carreg Gwalch

(phytopathology) bird's-eye-primrose smut (Urocystis primulicola)


annwn

annwn
hannwn (prothesis-h)
annwfn (alternative)

(mythology) underworld, netherworld, fairyland


cysb

(veterinary medicine) grass tetany, the staggers


treiglad caled

treiglad caled m (plural treigladau caled or treigladau caledion)

treigladau caled (plural)
treigladau caledion (plural)
treiglad caled
dreiglad caled (soft)
nhreiglad caled
threiglad caled

(linguistics, countable) hard mutation, provection, fortition


ffurfdroad

ffurfdroad m (plural ffurfdroadau, not mutable)

ffurf (“form, shape”) + troad (“rotation”)


gwythïen

cy-noun

gwythïen m or f (plural gwythiennau or gwythienni)

gwythiennau (plural)
gwythienni (plural)
gwythïen
wythïen (soft)
ngwythïen
gwythen (alternative)

Singulative of gwythi (“veins”, archaic), plural of gŵyth (“vein”, archaic).


alsoddeg

(obsolete, mathematics) synonym of algebra (“algebra”)


di-dor

cy-adj

di-dor (feminine singular di-dor, plural di-dor, not comparable)

di-dor (feminine singular)
di-dor (plural)
di-dor
ddi-dor (soft)
ni-dor
didor (alternative)

From di- (“without, -less”) + tor (“cut, breakage”).


arwahanol

cy-adj

arwahanol (feminine singular arwahanol, plural arwahanol, equative mor arwahanol, comparative mwy arwahanol, superlative mwyaf arwahanol)

arwahanol (feminine singular)
arwahanol (plural)
mor arwahanol (equative)
mwy arwahanol (comparative)
mwyaf arwahanol (superlative)
arwahanol
harwahanol (prothesis-h)


datgywasgu

cy-verb

datgywasgu (first-person singular present datgywasgaf)

datgywasgaf (first-person present singular)
datywasgaf (first-person future indicative present singular)
datywesgi (future indicative present second-person singular)
datywasga (future indicative present singular third-person)
datywasgwn (first-person future indicative plural present)
datywesgwch (future indicative plural present second-person)
datywasgwch (future indicative plural present second-person)
datywasgant (future indicative plural present third-person)
datywesgir (future impersonal indicative present)
datywasgwn (conditional first-person singular)
datywasgwn (first-person imperfect indicative singular subjunctive)
datywasgit (conditional second-person singular)
datywasgit (imperfect indicative second-person singular subjunctive)
datywasgai (conditional singular third-person)
datywasgai (imperfect indicative singular subjunctive third-person)
datywasgem (conditional first-person plural)
datywasgem (first-person imperfect indicative plural subjunctive)
datywasgech (conditional plural second-person)
datywasgech (imperfect indicative plural second-person subjunctive)
datywasgent (conditional plural third-person)
datywasgent (imperfect indicative plural subjunctive third-person)
datywesgid (conditional impersonal)
datywesgid (imperfect impersonal indicative subjunctive)
datywesgais (first-person preterite singular)
datywesgaist (preterite second-person singular)
datywasgodd (preterite singular third-person)
datywasgasom (first-person plural preterite)
datywasgasoch (plural preterite second-person)
datywasgasant (plural preterite third-person)
datywasgwyd (impersonal preterite)
datywasgaswn (first-person pluperfect singular)
datywasgasit (pluperfect second-person singular)
datywasgasai (pluperfect singular third-person)
datywasgasem (first-person pluperfect plural)
datywasgasech (pluperfect plural second-person)
datywasgasent (pluperfect plural third-person)
datywasgasid (impersonal pluperfect)
datywasgesid (impersonal pluperfect)
datywasgwyf (first-person present singular subjunctive)
datywesgych (present second-person singular subjunctive)
datywasgo (present singular subjunctive third-person)
datywasgom (first-person plural present subjunctive)
datywasgoch (plural present second-person subjunctive)
datywasgont (plural present subjunctive third-person)
datywasger (impersonal present subjunctive)
datywasga (imperative second-person singular)
datywasged (imperative singular third-person)
datywasgwn (first-person imperative plural)
datywesgwch (imperative plural second-person)
datywasgwch (imperative plural second-person)
datywasgent (imperative plural third-person)
datywasger (imperative impersonal)
datgywasgu (noun-from-verb singular)
datywasgedig (participle singular)
datywasgadwy (participle singular)
datywasga i (first-person future singular)
datywasgaf i (first-person future singular)
datywasgi di (future second-person singular)
datywasgith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
datywasgiff e (future singular third-person)
datywasgwn ni (first-person future plural)
datywasgwch chi (future plural second-person)
datywasgan nhw (future plural third-person)
datywasgwn i (conditional first-person singular)
datywasgswn i (conditional first-person singular)
datywasget ti (conditional second-person singular)
datywasgset ti (conditional second-person singular)
datywasgai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
datywasgsai fo (conditional singular third-person)
datywasgen ni (conditional first-person plural)
datywasgsen ni (conditional first-person plural)
datywasgech chi (conditional plural second-person)
datywasgsech chi (conditional plural second-person)
datywasgen nhw (conditional plural third-person)
datywasgsen nhw (conditional plural third-person)
datywasgais i (first-person preterite singular)
datywasges i (first-person preterite singular)
datywasgaist ti (preterite second-person singular)
datywasgest ti (preterite second-person singular)
datywasgodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
datywasgon ni (first-person plural preterite)
datywasgoch chi (plural preterite second-person)
datywasgon nhw (plural preterite third-person)
datywasga (imperative second-person singular)
datywasgwch (imperative plural second-person)
datgywasgu
ddatgywasgu (soft)
natgywasgu

From dat- (“de-”) + cywasgu (“to compress”).

(computing) to decompress (to restore compressed data)


asymptotig

cy-adj

asymptotig (feminine singular asymptotig, plural asymptotig, not comparable)

asymptotig (feminine singular)
asymptotig (plural)

Borrowed from English asymptotic. By surface analysis, asymptot + -ig.

mathematical analysis
mathematical analysis


binomaidd

binomaidd (feminine singular binomaidd, plural binomaidd, not comparable)

binomaidd (feminine singular)
binomaidd (plural)


mallter

mall (“pestilence, blight”) + -ter (“-ness”).


uwchfeirniadaeth

uwch- (“hyper-, super-”) + beirniadaeth (“criticism, adjucation”)

historical criticism
historical criticism

(theology, history) higher criticism, historical criticism


isfeirniadaeth

is- (“sub-”) + beirniadaeth (“criticism, adjucation”)

(theology, history) lower criticism, textual criticism


integrol

cy-adj

integrol (feminine singular integrol, plural integrol, not comparable)

integrol (feminine singular)
integrol (plural)


hafaliad

cy-noun

hafaliad m (plural hafaliadau, not mutable)


integriad

integriadau (plural)
integriad
hintegriad (prothesis-h)


atchweliad

(biology, genetics, psychology, statistics) regression


ymhelaethiad

From ymhelaethu (“to enlarge oneself”) + -iad.

af

(mathematics) self-enlargement, amplification, elaboration


amrediad

range, span, scope
(mathematics, statistics) range


apig

apigau (plural)
apig
hapig (prothesis-h)


pen-glin

pen-gliniau (plural)
pen-glin
ben-glin (soft)
mhen-glin
phen-glin


cesail morddwyd

cy-noun

cesail morddwyd f (plural ceseiliau morddwydydd)

ceseiliau morddwydydd (plural)
cesail morddwyd
gesail morddwyd (soft)
nghesail morddwyd
chesail morddwyd
cesail y forddwyd (alternative)


morddwyd

morddwydydd (plural)
morddwyd
forddwyd (soft)


cesail y forddwyd

cesail y forddwyd f (plural ceseiliau y morddwydydd)

ceseiliau y morddwydydd (plural)
cesail y forddwyd
gesail y forddwyd (soft)
nghesail y forddwyd
chesail y forddwyd

(anatomy) alternative form of cesail morddwyd (“groin”)


gwäell y fraich

gwäell y fraich f (plural gwëyll y breich)

gwëyll y breich (plural)
gwäell y fraich
wäell y fraich (soft)
ngwäell y fraich
gwäell braich (alternative)

(anatomy) radius (long bone in the forearm)


rhif degol

rhif degol m (plural rhifau degol or rhifau degolion)

rhifau degol (plural)
rhifau degolion (plural)


nodiant degol

nodiant degol m (uncountable, not mutable)


sgalar

cy-adj

sgalar (feminine singular sgalar, plural sgalar, not comparable, not mutable)

sgalar (feminine singular)
sgalar (plural)


sgalar

(mathematics, physics) a scalar (a quantity that has magnitude but no specified direction)


fector

fector (feminine singular fector, plural fector, not comparable, not mutable)

fector (feminine singular)
fector (plural)


fector

(mathematics, physics) a vector (a quantity that has both magnitude and direction)

(biology, medicine) a vector (a means of transmission)


fectoru

cy-verb

fectoru (first-person singular present fectoraf, not mutable)

fectoraf (first-person present singular)
fectoraf (first-person future indicative present singular)
fectori (future indicative present second-person singular)
fectora (future indicative present singular third-person)
fectorwn (first-person future indicative plural present)
fectorwch (future indicative plural present second-person)
fectorant (future indicative plural present third-person)
fectorir (future impersonal indicative present)
fectorwn (conditional first-person singular)
fectorwn (first-person imperfect indicative singular subjunctive)
fectorit (conditional second-person singular)
fectorit (imperfect indicative second-person singular subjunctive)
fectorai (conditional singular third-person)
fectorai (imperfect indicative singular subjunctive third-person)
fectorem (conditional first-person plural)
fectorem (first-person imperfect indicative plural subjunctive)
fectorech (conditional plural second-person)
fectorech (imperfect indicative plural second-person subjunctive)
fectorent (conditional plural third-person)
fectorent (imperfect indicative plural subjunctive third-person)
fectorid (conditional impersonal)
fectorid (imperfect impersonal indicative subjunctive)
fectorais (first-person preterite singular)
fectoraist (preterite second-person singular)
fectorodd (preterite singular third-person)
fectorasom (first-person plural preterite)
fectorasoch (plural preterite second-person)
fectorasant (plural preterite third-person)
fectorwyd (impersonal preterite)
fectoraswn (first-person pluperfect singular)
fectorasit (pluperfect second-person singular)
fectorasai (pluperfect singular third-person)
fectorasem (first-person pluperfect plural)
fectorasech (pluperfect plural second-person)
fectorasent (pluperfect plural third-person)
fectorasid (impersonal pluperfect)
fectoresid (impersonal pluperfect)
fectorwyf (first-person present singular subjunctive)
fectorych (present second-person singular subjunctive)
fectoro (present singular subjunctive third-person)
fectorom (first-person plural present subjunctive)
fectoroch (plural present second-person subjunctive)
fectoront (plural present subjunctive third-person)
fectorer (impersonal present subjunctive)
fectora (imperative second-person singular)
fectored (imperative singular third-person)
fectorwn (first-person imperative plural)
fectorwch (imperative plural second-person)
fectorent (imperative plural third-person)
fectorer (imperative impersonal)
fectoru (noun-from-verb singular)
fectoredig (participle singular)
fectora i (first-person future singular)
fectoraf i (first-person future singular)
fectori di (future second-person singular)
fectorith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
fectoriff e (future singular third-person)
fectorwn ni (first-person future plural)
fectorwch chi (future plural second-person)
fectoran nhw (future plural third-person)
fectorwn i (conditional first-person singular)
fectorswn i (conditional first-person singular)
fectoret ti (conditional second-person singular)
fectorset ti (conditional second-person singular)
fectorai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
fectorsai fo (conditional singular third-person)
fectoren ni (conditional first-person plural)
fectorsen ni (conditional first-person plural)
fectorech chi (conditional plural second-person)
fectorsech chi (conditional plural second-person)
fectoren nhw (conditional plural third-person)
fectorsen nhw (conditional plural third-person)
fectorais i (first-person preterite singular)
fectores i (first-person preterite singular)
fectoraist ti (preterite second-person singular)
fectorest ti (preterite second-person singular)
fectorodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
fectoron ni (first-person plural preterite)
fectoroch chi (plural preterite second-person)
fectoron nhw (plural preterite third-person)
fectora (imperative second-person singular)
fectorwch (imperative plural second-person)
fectoru


graffigol

cy-adj

graffigol (feminine singular graffigol, plural graffigol, not comparable)

graffigol (feminine singular)
graffigol (plural)
graffigol
raffigol (soft)
ngraffigol

Adapted from English graphical. By surface analysis, graffig (“graphic”) + -ol.


echreiddiad

echreiddiadau (plural)
echreiddiad
hechreiddiad (prothesis-h)

From ech- (“ex-”) + craidd (“centre, middle”) + -iad.


echreiddig

cy-adj

echreiddig (feminine singular echreiddig, plural echreiddig, equative mor echreiddig, comparative mwy echreiddig, superlative mwyaf echreiddig)

echreiddig (feminine singular)
echreiddig (plural)
mor echreiddig (equative)
mwy echreiddig (comparative)
mwyaf echreiddig (superlative)

From ech- (“ex-”) + craidd (“centre, middle”) + -ig.


tafluniad

tafluniadau (plural)
tafluniad
dafluniad (soft)
nhafluniad
thafluniad


allanoliad

allanoliadau (plural)
allanoliad
hallanoliad (prothesis-h)


isradd

israddau (plural)
isradd
hisradd (prothesis-h)


amledd

cy-noun

amledd m (usually uncountable, plural amleddau)

amleddau (plural)
amledd
hamledd (prothesis-h)


actifedd

actifeddau (plural)
actifedd
hactifedd (prothesis-h)


aflem

cy-adj

aflem (feminine singular aflem, plural aflem, not comparable)

aflem (feminine singular)
aflem (plural)
aflem
haflem (prothesis-h)


acsiom

acsiomau (plural)
acsiom
hacsiom (prothesis-h)


gwireb

gwirebau (plural)
gwirebion (plural)
gwireb
wireb (soft)
ngwireb


amgrwm

amgrwm (feminine singular amgrom, plural amgrymion, not comparable)

amgrom (feminine singular)
amgrymion (plural)
amgrwm
hamgrwm (prothesis-h)

From am- (“around, circum-”) + crwm (“crooked”).


ceugrwm

cy-adj

ceugrwm (feminine singular ceugrom, plural ceugrwm, not comparable)

ceugrom (feminine singular)
ceugrwm (plural)
ceugrwm
geugrwm (soft)
ngheugrwm
cheugrwm


materolaidd

materolaidd (feminine singular materolaidd, plural materolaidd, equative mor faterolaidd, comparative mwy materolaidd, superlative mwyaf materolaidd)

materolaidd (feminine singular)
materolaidd (plural)
mor faterolaidd (equative)
mwy materolaidd (comparative)
mwyaf materolaidd (superlative)
materolaidd
faterolaidd (soft)

(philosophy) materialistic, pertaining to materialism


materyddol

materyddol (feminine singular materyddol, plural materyddol, equative mor fateryddol, comparative mwy materyddol, superlative mwyaf materyddol)

materyddol (feminine singular)
materyddol (plural)
mor fateryddol (equative)
mwy materyddol (comparative)
mwyaf materyddol (superlative)
materyddol
fateryddol (soft)

materydd (“philosophical materialist”) + -ol.


materydd

materyddion (plural)
materydd
faterydd (soft)


materolwr

materolwyr (plural)
materolwr
faterolwr (soft)


materiaethol

cy-adj

materiaethol (feminine singular materiaethol, plural materiaethol, equative mor fateriaethol, comparative mwy materiaethol, superlative mwyaf materiaethol)

materiaethol (feminine singular)
materiaethol (plural)
mor fateriaethol (equative)
mwy materiaethol (comparative)
mwyaf materiaethol (superlative)
materiaethol
fateriaethol (soft)


anghyfochrog

anghyfochrog (feminine singular anghyfochrog, plural anghyfochrog, not comparable)

anghyfochrog (feminine singular)
anghyfochrog (plural)
anghyfochrog
hanghyfochrog (prothesis-h)

From an- (“un-”) + cyfochrog (“parallel”).


ecsentrig

ecsentrig (feminine singular ecsentrig, plural ecsentrig, equative mor ecsentrig, comparative mwy ecsentrig, superlative mwyaf ecsentrig)

ecsentrig (feminine singular)
ecsentrig (plural)
mor ecsentrig (equative)
mwy ecsentrig (comparative)
mwyaf ecsentrig (superlative)
ecsentrig
hecsentrig (prothesis-h)


ffocws cinetig

cy-noun

ffocws cinetig m (plural ffocysau cinetig, not mutable)

ffocysau cinetig (plural)
ffocws cinetig


enrhifo

cy-verb

enrhifo (first-person singular present enrhifaf)

enrhifaf (first-person present singular)
enrhifaf (first-person future indicative present singular)
enrhifi (future indicative present second-person singular)
enrhif (future indicative present singular third-person)
enrhifa (future indicative present singular third-person)
enrhifwn (first-person future indicative plural present)
enrhifwch (future indicative plural present second-person)
enrhifant (future indicative plural present third-person)
enrhifir (future impersonal indicative present)
enrhifwn (conditional first-person singular)
enrhifwn (first-person imperfect indicative singular subjunctive)
enrhifit (conditional second-person singular)
enrhifit (imperfect indicative second-person singular subjunctive)
enrhifai (conditional singular third-person)
enrhifai (imperfect indicative singular subjunctive third-person)
enrhifem (conditional first-person plural)
enrhifem (first-person imperfect indicative plural subjunctive)
enrhifech (conditional plural second-person)
enrhifech (imperfect indicative plural second-person subjunctive)
enrhifent (conditional plural third-person)
enrhifent (imperfect indicative plural subjunctive third-person)
enrhifid (conditional impersonal)
enrhifid (imperfect impersonal indicative subjunctive)
enrhifais (first-person preterite singular)
enrhifaist (preterite second-person singular)
enrhifodd (preterite singular third-person)
enrhifasom (first-person plural preterite)
enrhifasoch (plural preterite second-person)
enrhifasant (plural preterite third-person)
enrhifwyd (impersonal preterite)
enrhifaswn (first-person pluperfect singular)
enrhifasit (pluperfect second-person singular)
enrhifasai (pluperfect singular third-person)
enrhifasem (first-person pluperfect plural)
enrhifasech (pluperfect plural second-person)
enrhifasent (pluperfect plural third-person)
enrhifasid (impersonal pluperfect)
enrhifesid (impersonal pluperfect)
enrhifwyf (first-person present singular subjunctive)
enrhifych (present second-person singular subjunctive)
enrhifo (present singular subjunctive third-person)
enrhifom (first-person plural present subjunctive)
enrhifoch (plural present second-person subjunctive)
enrhifont (plural present subjunctive third-person)
enrhifer (impersonal present subjunctive)
enrhif (imperative second-person singular)
enrhifa (imperative second-person singular)
enrhifed (imperative singular third-person)
enrhifwn (first-person imperative plural)
enrhifwch (imperative plural second-person)
enrhifent (imperative plural third-person)
enrhifer (imperative impersonal)
enrhifo (noun-from-verb singular)
enrhifedig (participle singular)
enrhifadwy (participle singular)
enrhifa i (first-person future singular)
enrhifaf i (first-person future singular)
enrhifi di (future second-person singular)
enrhifith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
enrhififf e (future singular third-person)
enrhifwn ni (first-person future plural)
enrhifwch chi (future plural second-person)
enrhifan nhw (future plural third-person)
enrhifwn i (conditional first-person singular)
enrhifswn i (conditional first-person singular)
enrhifet ti (conditional second-person singular)
enrhifset ti (conditional second-person singular)
enrhifai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
enrhifsai fo (conditional singular third-person)
enrhifen ni (conditional first-person plural)
enrhifsen ni (conditional first-person plural)
enrhifech chi (conditional plural second-person)
enrhifsech chi (conditional plural second-person)
enrhifen nhw (conditional plural third-person)
enrhifsen nhw (conditional plural third-person)
enrhifais i (first-person preterite singular)
enrhifes i (first-person preterite singular)
enrhifaist ti (preterite second-person singular)
enrhifest ti (preterite second-person singular)
enrhifodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
enrhifon ni (first-person plural preterite)
enrhifoch chi (plural preterite second-person)
enrhifon nhw (plural preterite third-person)
enrhifa (imperative second-person singular)
enrhifwch (imperative plural second-person)
enrhifo
henrhifo (prothesis-h)

enrhif (“mathematical value”) + -o or en- + rhifo (“to count”).


fector safle

cy-noun

fector safle m (plural fector safleau, not mutable)


Ewclidaidd

cy-adj

Ewclidaidd (feminine singular Ewclidaidd, plural Ewclidaidd, not comparable)

Ewclidaidd (feminine singular)
Ewclidaidd (plural)
Ewclidaidd
Hewclidaidd (prothesis-h)


Plwton

Internationalism. Borrowed from Latin Plūtō, Plūtōnem, possibly via Pluto.


deuol

deuol (feminine singular deuol, plural deuol, not comparable)

deuol (feminine singular)
deuol (plural)

(mathematics, rare) bicimal, binimal, binal, binary fractional


newidyn di-dor

cy-noun

newidyn di-dor m (plural newidynnau di-dor, not mutable)


newidyn dibynnol

newidyn dibynnol m (plural newidynnau dibynnol, not mutable)

(sciences, statistics) dependent variable


newidyn annibynnol

newidyn annibynnol m (plural newidynnau annibynnol, not mutable)

independent variable
independent variable

(sciences, statistics) independent variable


newidyn rheolydd

newidyn rheolydd m (plural newidynnau rheolydd, not mutable)


hapnewidyn

hapnewidyn m (plural hapnewidynnau, not mutable)


hapddewis

hapddewis m (plural hapddewision, not mutable)


hapsampl

hapsampl m (plural hapsamplau, not mutable)


amledd cronnus

amledd cronnus m (plural amleddau cronnus)

amleddau cronnus (plural)
amledd cronnus
hamledd cronnus (prothesis-h)

cumulative frequency
cumulative frequency


ail isradd

ail israddau (plural)
ail isradd
hail isradd (prothesis-h)


trydydd isradd

trydydd isradd f (plural trydydd israddau)

trydydd israddau (plural)
trydydd isradd
drydydd isradd (soft)
nhrydydd isradd
thrydydd isradd


allgylch

allgylchoedd (plural)
allgylch
hallgylch (prothesis-h)

Calque of English excircle. By surface analysis, all- (“ex-”) + cylch (“circle”).

surface analysis

(mathematics) excircle, an eccentric or escribed circle


hafalochrog

cy-adj

hafalochrog (feminine singular hafalochrog, plural hafalochrog, not comparable, not mutable)

hafalochrog (feminine singular)
hafalochrog (plural)
hafalochrog

From hafal (“equal, same”) + ochrog (“parallel”).


rhwd mynawyd-y-bugail

cy-noun

rhwd mynawyd-y-bugail m or f (uncountable)

rhwd mynawyd-y-bugail
rwd mynawyd-y-bugail (soft)

(phytopathology) geranium rust (Uromyces geranii)


cawod goch cegid

cawod goch cegid
gawod goch cegid (soft)
nghawod goch cegid
chawod goch cegid

y gawod goch (“rust, red blight”) + cegid (“hemlock”).

(phytopathology) cowbane rust (Puccinia cicutae)


trigonometreg

trigonometreg
drigonometreg (soft)
nhrigonometreg
thrigonometreg
trigonomeg (alternative)

Adapted from English trigonometry + -eg.

(geometry, mathematical analysis) trigonometry


trigonometregol

cy-adj

trigonometregol (feminine singular trigonometregol, plural trigonometregol, not comparable)

trigonometregol (feminine singular)
trigonometregol (plural)
trigonometregol
drigonometregol (soft)
nhrigonometregol
thrigonometregol

(geometry, mathematical analysis) trigonometrical


trigonometrig

trigonometrig (feminine singular trigonometrig, plural trigonometrig, not comparable)

trigonometrig (feminine singular)
trigonometrig (plural)
trigonometrig
drigonometrig (soft)
nhrigonometrig
thrigonometrig

Adapted from English trigonometry + -ig.

(geometry, mathematical analysis) trigonometric


tangiad

differential geometry
differential geometry

(mathematics, differential geometry) tangent


trigonometraidd

trigonometraidd (feminine singular trigonometraidd, plural trigonometraidd, not comparable)

trigonometraidd (feminine singular)
trigonometraidd (plural)
trigonometraidd
drigonometraidd (soft)
nhrigonometraidd
thrigonometraidd

Adapted from English trigonometry + -aidd.

(geometry, mathematical analysis, rare) trigonometric


sefydlyn

cy-noun

sefydlyn m (plural sefydlynnau, not mutable)


ffactorio

cy-verb

ffactorio (first-person singular present ffactoriaf, not mutable)

ffactoriaf (first-person present singular)
ffactorio


allanu

allanu (first-person singular present allanaf)


diddwythiad

diddwythiadau (plural)
diddwythiad
ddiddwythiad (soft)
niddwythiad

Adapted borrowing of English deduction and Latin dēductiō. The change of Latin -uct- to Welsh -wyth- is regular in loanwords borrowed at the Proto-Brythonic stage (for example, ffrwyth from fructus); this is one of several late coinages formed to appear to be early borrowings. The prefix was adapted to native di-, and the term was suffixed with -iad.

(logic) deduction (derivation of a specific conclusion from specified premises)


morffogystrawennol

cy-adj

morffogystrawennol (feminine singular morffogystrawennol, plural morffogystrawennol, not comparable)

morffogystrawennol (feminine singular)
morffogystrawennol (plural)
morffogystrawennol
forffogystrawennol (soft)

From morffo- + cystrawennol (“syntactic”) or morffogystrawen (“morphosyntax”) + -ol.


cystrawennol

cystrawennol (feminine singular cystrawennol, plural cystrawennol, not comparable)

cystrawennol (feminine singular)
cystrawennol (plural)

(linguistics) syntactic, relating to syntax


ffwythiant

cy-noun

ffwythiant m (plural ffwythiannau, not mutable)

Adapted borrowing of Latin fūnctiō + -iant, with the conceit of applying sound changes that affected Latin loans inherited by Welsh from Common Brittonic.


allaniad

allaniadau (plural)
allaniad
hallaniad (prothesis-h)


dwbled

dwbledau (plural)
dwbledi (plural)
dwbled
ddwbled (soft)
nwbled

Borrowed from English doublet, from Old French doublet.

doublet, one of a pair
(linguistics) doublet


Oes yr Efydd

Oes yr Efydd
Hoes yr Efydd (prothesis-h)


Oes yr Haearn

Oes yr Haearn
Hoes yr Haearn (prothesis-h)


Oes y Cerrig

Oes y Cerrig
Hoes y Cerrig (prothesis-h)


Oesoedd Canol

yr Oesoedd Canol (canonical feminine plural)
Oesoedd Canol
Hoesoedd Canol (prothesis-h)
yr Oesau Canol (alternative)


hafaliad cwadratig

cy-noun

hafaliad cwadratig m (plural hafaliadau cwadratig, not mutable)


hafaliad cydamserol

hafaliad cydamserol m (plural hafaliadau cydamserol, not mutable)

simultaneous equation
simultaneous equation


integriad graffigol

integriad graffigol m (plural integriadau cwadratig)

graphical integration
graphical integration

(mathematics, sciences, statistics) graphical integration


hapnewidyn arwahanol

hapnewidyn arwahanol m (plural hapnewidynnau arwahanol, not mutable)

discrete random variable
discrete random variable


hapnewidyn safonol

hapnewidyn safonol m (plural hapnewidynnau safonol, not mutable)

standard random variable
standard random variable


hapnewidyn di-dor

hapnewidyn di-dor m (plural hapnewidynnau arwahanol, not mutable)

continuous random variable
continuous random variable


ffwythiant amcan

ffwythiant amcan m (plural fwythiannau amcan, not mutable)


ffwythiant cyfansawdd

ffwythiant cyfansawdd m (plural fwythiannau cyfansawdd, not mutable)


ffwythiant cymhlyg

ffwythiant cymhlyg m (plural fwythiannau cymhlyg, not mutable)


ffwythiant cwadratig

ffwythiant cwadratig m (plural fwythiannau cwadratig, not mutable)


ffwythiant eigen

ffwythiant eigen m (plural fwythiannau eigen, not mutable)


ffwythiant pŵer

ffwythiant pŵer m (plural fwythiannau pŵer, not mutable)


defnydd-deb

(economics) utility (the ability of a commodity to satisfy needs or wants)


hanner cylch

hanner cylch m (plural haneri cylch or haneri cylchoedd, not mutable)

haneri cylch (plural)
haneri cylchoedd (plural)


datgymalu

cy-verb

datgymalu (first-person singular present datgymalaf)

datgymalaf (first-person present singular)
datgymalu
ddatgymalu (soft)
natgymalu

From dat- (“de-”) + cymalu (“to joint”).


isddatgymalu

isddatgymalu (first-person singular present isddatgymalaf)

isddatgymalaf (first-person present singular)
isddatgymalu
hisddatgymalu (prothesis-h)

From is- (“sub-”) + datgymalu (“to dislocate”).


cyfansawdd

cy-noun

cyfansawdd m (plural cyfansoddion or cyfansoddiau or cyfansawddau)

cyfansoddion (plural)
cyfansoddiau (plural)
cyfansawddau (plural)

compound, composite
(linguistics) compound


fector eigen

fector eigen m (plural fectorau eigen, not mutable)


gwerth eigen

gwerth eigen m (plural gwerthoedd eigen)


gwladwriaeth

gwladwriaethau (plural)
gwladwriaeth
wladwriaeth (soft)
ngwladwriaeth

From gwladwr (“countryman”) + -iaeth (suffix forming abstract nouns).

com

(philosophy, as y Wladwriaeth) Plato's Republic


disg hyblyg

disgiau hyblyg (plural)
disg hyblyg
ddisg hyblyg (soft)
nisg hyblyg


disg caled

disgiau caled (plural)
disg caled
ddisg caled (soft)
nisg caled


disgyrrwr

disgyrwyr (plural)
disgyrrwr
ddisgyrrwr (soft)
nisgyrrwr

Calque of English disk drive. By surface analysis, disg (“disk”) + gyrrwr (“driver”).


disg llipa

disgiau llipa (plural)
disg llipa
ddisg llipa (soft)
nisg llipa


cynodi

cy-verb

cynodi (first-person singular present cynodaf)

cynodaf (first-person present singular)
cynodaf (first-person future indicative present singular)
cynodi (future indicative present second-person singular)
cynoda (future indicative present singular third-person)
cynodwn (first-person future indicative plural present)
cynodwch (future indicative plural present second-person)
cynodant (future indicative plural present third-person)
cynodir (future impersonal indicative present)
cynodwn (conditional first-person singular)
cynodwn (first-person imperfect indicative singular subjunctive)
cynodit (conditional second-person singular)
cynodit (imperfect indicative second-person singular subjunctive)
cynodai (conditional singular third-person)
cynodai (imperfect indicative singular subjunctive third-person)
cynodem (conditional first-person plural)
cynodem (first-person imperfect indicative plural subjunctive)
cynodech (conditional plural second-person)
cynodech (imperfect indicative plural second-person subjunctive)
cynodent (conditional plural third-person)
cynodent (imperfect indicative plural subjunctive third-person)
cynodid (conditional impersonal)
cynodid (imperfect impersonal indicative subjunctive)
cynodais (first-person preterite singular)
cynodaist (preterite second-person singular)
cynododd (preterite singular third-person)
cynodasom (first-person plural preterite)
cynodasoch (plural preterite second-person)
cynodasant (plural preterite third-person)
cynodwyd (impersonal preterite)
cynodaswn (first-person pluperfect singular)
cynodasit (pluperfect second-person singular)
cynodasai (pluperfect singular third-person)
cynodasem (first-person pluperfect plural)
cynodasech (pluperfect plural second-person)
cynodasent (pluperfect plural third-person)
cynodasid (impersonal pluperfect)
cynodesid (impersonal pluperfect)
cynodwyf (first-person present singular subjunctive)
cynodych (present second-person singular subjunctive)
cynodo (present singular subjunctive third-person)
cynodom (first-person plural present subjunctive)
cynodoch (plural present second-person subjunctive)
cynodont (plural present subjunctive third-person)
cynoder (impersonal present subjunctive)
cynoda (imperative second-person singular)
cynoded (imperative singular third-person)
cynodwn (first-person imperative plural)
cynodwch (imperative plural second-person)
cynodent (imperative plural third-person)
cynoder (imperative impersonal)
cynodi (noun-from-verb singular)
cynodedig (participle singular)
cynodadwy (participle singular)
cynoda i (first-person future singular)
cynodaf i (first-person future singular)
cynodi di (future second-person singular)
cynodith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
cynodiff e (future singular third-person)
cynodwn ni (first-person future plural)
cynodwch chi (future plural second-person)
cynodan nhw (future plural third-person)
cynodwn i (conditional first-person singular)
cynodswn i (conditional first-person singular)
cynodet ti (conditional second-person singular)
cynodset ti (conditional second-person singular)
cynodai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
cynodsai fo (conditional singular third-person)
cynoden ni (conditional first-person plural)
cynodsen ni (conditional first-person plural)
cynodech chi (conditional plural second-person)
cynodsech chi (conditional plural second-person)
cynoden nhw (conditional plural third-person)
cynodsen nhw (conditional plural third-person)
cynodais i (first-person preterite singular)
cynodes i (first-person preterite singular)
cynodaist ti (preterite second-person singular)
cynodest ti (preterite second-person singular)
cynododd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
cynodon ni (first-person plural preterite)
cynodoch chi (plural preterite second-person)
cynodon nhw (plural preterite third-person)
cynoda (imperative second-person singular)
cynodwch (imperative plural second-person)
cynodi
gynodi (soft)
nghynodi
chynodi


ymwthiad

From ymwthio (“to self-propel”) + -iad or ym- (“self-, auto-”) + gwthiad (“thrust, propulsion”).


dolur llygad

dolur llygad
ddolur llygad (soft)
nolur llygad


Enceladws

Borrowed from English Enceladus, from Ancient Greek Ἐγκέλαδος (Enkélados).


Iapetws

Borrowed from English Iapetus, from Ancient Greek Ἰαπετός (Iapetós).


gwenwyniad gwaed

gwenwyniad gwaed
wenwyniad gwaed (soft)
ngwenwyniad gwaed

(medicine, pathology) blood poisoning, septicemia, toxemia


arwydd y sidydd

cy-noun

arwydd y sidydd m (plural arwyddion y sidydd)

arwyddion y sidydd (plural)
arwydd y sidydd
harwydd y sidydd (prothesis-h)


parddu'r briwydd

parddu'r briwydd
barddu'r briwydd (soft)
mharddu'r briwydd
pharddu'r briwydd

(phytopathology) bedstraw smut (Melanotaenium endogenum)


bys yr uwd

bysedd yr uwd (plural)
bys yr uwd
fys yr uwd (soft)
mys yr uwd
uwdfys (alternative)


Caerdroea

Caerdroea
Gaerdroea (soft)
Nghaerdroea
Chaerdroea

From caer (“citadel, fortress”) + Latin Trōia.


rhwd mintys

(phytopathology) mint rust (Puccinia menthae)


cyfosodiad

cyfosodiadau (plural)
cyfosodiad
gyfosodiad (soft)
nghyfosodiad
chyfosodiad


atodi

cy-verb

atodi (first-person singular present atodiaf)

atodiaf (first-person present singular)
atodiaf (first-person future indicative present singular)
atodii (future indicative present second-person singular)
atodi (future indicative present singular third-person)
atodia (future indicative present singular third-person)
atodiwn (first-person future indicative plural present)
atodiwch (future indicative plural present second-person)
atodiant (future indicative plural present third-person)
atodiir (future impersonal indicative present)
atodiwn (conditional first-person singular)
atodiwn (first-person imperfect indicative singular subjunctive)
atodiit (conditional second-person singular)
atodiit (imperfect indicative second-person singular subjunctive)
atodiai (conditional singular third-person)
atodiai (imperfect indicative singular subjunctive third-person)
atodiem (conditional first-person plural)
atodiem (first-person imperfect indicative plural subjunctive)
atodiech (conditional plural second-person)
atodiech (imperfect indicative plural second-person subjunctive)
atodient (conditional plural third-person)
atodient (imperfect indicative plural subjunctive third-person)
atodiid (conditional impersonal)
atodiid (imperfect impersonal indicative subjunctive)
atodiais (first-person preterite singular)
atodiaist (preterite second-person singular)
atodiodd (preterite singular third-person)
atodiasom (first-person plural preterite)
atodiasoch (plural preterite second-person)
atodiasant (plural preterite third-person)
atodiwyd (impersonal preterite)
atodiaswn (first-person pluperfect singular)
atodiasit (pluperfect second-person singular)
atodiasai (pluperfect singular third-person)
atodiasem (first-person pluperfect plural)
atodiasech (pluperfect plural second-person)
atodiasent (pluperfect plural third-person)
atodiasid (impersonal pluperfect)
atodiesid (impersonal pluperfect)
atodiwyf (first-person present singular subjunctive)
atodiych (present second-person singular subjunctive)
atodio (present singular subjunctive third-person)
atodiom (first-person plural present subjunctive)
atodioch (plural present second-person subjunctive)
atodiont (plural present subjunctive third-person)
atodier (impersonal present subjunctive)
atodi (imperative second-person singular)
atodia (imperative second-person singular)
atodied (imperative singular third-person)
atodiwn (first-person imperative plural)
atodiwch (imperative plural second-person)
atodient (imperative plural third-person)
atodier (imperative impersonal)
atodi (noun-from-verb singular)
atodiedig (participle singular)
atodiadwy (participle singular)
atodia i (first-person future singular)
atodiaf i (first-person future singular)
atodi di (future second-person singular)
atodith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
atodiff e (future singular third-person)
atodiwn ni (first-person future plural)
atodiwch chi (future plural second-person)
atodian nhw (future plural third-person)
atodiwn i (conditional first-person singular)
atodiswn i (conditional first-person singular)
atodiet ti (conditional second-person singular)
atodiset ti (conditional second-person singular)
atodiai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
atodisai fo (conditional singular third-person)
atodien ni (conditional first-person plural)
atodisen ni (conditional first-person plural)
atodiech chi (conditional plural second-person)
atodisech chi (conditional plural second-person)
atodien nhw (conditional plural third-person)
atodisen nhw (conditional plural third-person)
atodiais i (first-person preterite singular)
atodies i (first-person preterite singular)
atodiaist ti (preterite second-person singular)
atodiest ti (preterite second-person singular)
atodiodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
atodion ni (first-person plural preterite)
atodioch chi (plural preterite second-person)
atodion nhw (plural preterite third-person)
atodia (imperative second-person singular)
atodiwch (imperative plural second-person)
atodi
hatodi (prothesis-h)
atddodi (alternative)


rhagddodi

rhagddodi (first-person singular present rhagddodaf)

rhagddodaf (first-person present singular)
rhagddodaf (first-person future indicative present singular)
rhagddodi (future indicative present second-person singular)
rhagddoda (future indicative present singular third-person)
rhagddodwn (first-person future indicative plural present)
rhagddodwch (future indicative plural present second-person)
rhagddodant (future indicative plural present third-person)
rhagddodir (future impersonal indicative present)
rhagddodwn (conditional first-person singular)
rhagddodwn (first-person imperfect indicative singular subjunctive)
rhagddodit (conditional second-person singular)
rhagddodit (imperfect indicative second-person singular subjunctive)
rhagddodai (conditional singular third-person)
rhagddodai (imperfect indicative singular subjunctive third-person)
rhagddodem (conditional first-person plural)
rhagddodem (first-person imperfect indicative plural subjunctive)
rhagddodech (conditional plural second-person)
rhagddodech (imperfect indicative plural second-person subjunctive)
rhagddodent (conditional plural third-person)
rhagddodent (imperfect indicative plural subjunctive third-person)
rhagddodid (conditional impersonal)
rhagddodid (imperfect impersonal indicative subjunctive)
rhagddodais (first-person preterite singular)
rhagddodaist (preterite second-person singular)
rhagddododd (preterite singular third-person)
rhagddodasom (first-person plural preterite)
rhagddodasoch (plural preterite second-person)
rhagddodasant (plural preterite third-person)
rhagddodwyd (impersonal preterite)
rhagddodaswn (first-person pluperfect singular)
rhagddodasit (pluperfect second-person singular)
rhagddodasai (pluperfect singular third-person)
rhagddodasem (first-person pluperfect plural)
rhagddodasech (pluperfect plural second-person)
rhagddodasent (pluperfect plural third-person)
rhagddodasid (impersonal pluperfect)
rhagddodesid (impersonal pluperfect)
rhagddodwyf (first-person present singular subjunctive)
rhagddodych (present second-person singular subjunctive)
rhagddodo (present singular subjunctive third-person)
rhagddodom (first-person plural present subjunctive)
rhagddodoch (plural present second-person subjunctive)
rhagddodont (plural present subjunctive third-person)
rhagddoder (impersonal present subjunctive)
rhagddoda (imperative second-person singular)
rhagddoded (imperative singular third-person)
rhagddodwn (first-person imperative plural)
rhagddodwch (imperative plural second-person)
rhagddodent (imperative plural third-person)
rhagddoder (imperative impersonal)
rhagddodi (noun-from-verb singular)
rhagddodedig (participle singular)
rhagddodadwy (participle singular)
rhagddoda i (first-person future singular)
rhagddodaf i (first-person future singular)
rhagddodi di (future second-person singular)
rhagddodith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
rhagddodiff e (future singular third-person)
rhagddodwn ni (first-person future plural)
rhagddodwch chi (future plural second-person)
rhagddodan nhw (future plural third-person)
rhagddodwn i (conditional first-person singular)
rhagddodswn i (conditional first-person singular)
rhagddodet ti (conditional second-person singular)
rhagddodset ti (conditional second-person singular)
rhagddodai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
rhagddodsai fo (conditional singular third-person)
rhagddoden ni (conditional first-person plural)
rhagddodsen ni (conditional first-person plural)
rhagddodech chi (conditional plural second-person)
rhagddodsech chi (conditional plural second-person)
rhagddoden nhw (conditional plural third-person)
rhagddodsen nhw (conditional plural third-person)
rhagddodais i (first-person preterite singular)
rhagddodes i (first-person preterite singular)
rhagddodaist ti (preterite second-person singular)
rhagddodest ti (preterite second-person singular)
rhagddododd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
rhagddodon ni (first-person plural preterite)
rhagddodoch chi (plural preterite second-person)
rhagddodon nhw (plural preterite third-person)
rhagddoda (imperative second-person singular)
rhagddodwch (imperative plural second-person)
rhagddodi
ragddodi (soft)

From rhag- (“pre-”) + dodi (“to put, to place”).


blaenddodi

cy-verb

blaenddodi (first-person singular present blaenddodaf)

blaenddodaf (first-person present singular)
blaenddodaf (first-person future indicative present singular)
blaenddodi (future indicative present second-person singular)
blaenddoda (future indicative present singular third-person)
blaenddodwn (first-person future indicative plural present)
blaenddodwch (future indicative plural present second-person)
blaenddodant (future indicative plural present third-person)
blaenddodir (future impersonal indicative present)
blaenddodwn (conditional first-person singular)
blaenddodwn (first-person imperfect indicative singular subjunctive)
blaenddodit (conditional second-person singular)
blaenddodit (imperfect indicative second-person singular subjunctive)
blaenddodai (conditional singular third-person)
blaenddodai (imperfect indicative singular subjunctive third-person)
blaenddodem (conditional first-person plural)
blaenddodem (first-person imperfect indicative plural subjunctive)
blaenddodech (conditional plural second-person)
blaenddodech (imperfect indicative plural second-person subjunctive)
blaenddodent (conditional plural third-person)
blaenddodent (imperfect indicative plural subjunctive third-person)
blaenddodid (conditional impersonal)
blaenddodid (imperfect impersonal indicative subjunctive)
blaenddodais (first-person preterite singular)
blaenddodaist (preterite second-person singular)
blaenddododd (preterite singular third-person)
blaenddodasom (first-person plural preterite)
blaenddodasoch (plural preterite second-person)
blaenddodasant (plural preterite third-person)
blaenddodwyd (impersonal preterite)
blaenddodaswn (first-person pluperfect singular)
blaenddodasit (pluperfect second-person singular)
blaenddodasai (pluperfect singular third-person)
blaenddodasem (first-person pluperfect plural)
blaenddodasech (pluperfect plural second-person)
blaenddodasent (pluperfect plural third-person)
blaenddodasid (impersonal pluperfect)
blaenddodesid (impersonal pluperfect)
blaenddodwyf (first-person present singular subjunctive)
blaenddodych (present second-person singular subjunctive)
blaenddodo (present singular subjunctive third-person)
blaenddodom (first-person plural present subjunctive)
blaenddodoch (plural present second-person subjunctive)
blaenddodont (plural present subjunctive third-person)
blaenddoder (impersonal present subjunctive)
blaenddoda (imperative second-person singular)
blaenddoded (imperative singular third-person)
blaenddodwn (first-person imperative plural)
blaenddodwch (imperative plural second-person)
blaenddodent (imperative plural third-person)
blaenddoder (imperative impersonal)
blaenddodi (noun-from-verb singular)
blaenddodedig (participle singular)
blaenddodadwy (participle singular)
blaenddoda i (first-person future singular)
blaenddodaf i (first-person future singular)
blaenddodi di (future second-person singular)
blaenddodith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
blaenddodiff e (future singular third-person)
blaenddodwn ni (first-person future plural)
blaenddodwch chi (future plural second-person)
blaenddodan nhw (future plural third-person)
blaenddodwn i (conditional first-person singular)
blaenddodswn i (conditional first-person singular)
blaenddodet ti (conditional second-person singular)
blaenddodset ti (conditional second-person singular)
blaenddodai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
blaenddodsai fo (conditional singular third-person)
blaenddoden ni (conditional first-person plural)
blaenddodsen ni (conditional first-person plural)
blaenddodech chi (conditional plural second-person)
blaenddodsech chi (conditional plural second-person)
blaenddoden nhw (conditional plural third-person)
blaenddodsen nhw (conditional plural third-person)
blaenddodais i (first-person preterite singular)
blaenddodes i (first-person preterite singular)
blaenddodaist ti (preterite second-person singular)
blaenddodest ti (preterite second-person singular)
blaenddododd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
blaenddodon ni (first-person plural preterite)
blaenddodoch chi (plural preterite second-person)
blaenddodon nhw (plural preterite third-person)
blaenddoda (imperative second-person singular)
blaenddodwch (imperative plural second-person)
blaenddodi
flaenddodi (soft)
mlaenddodi

From blaen (“front”) + dodi (“to put, to place”).

com

(obsolete, transitive, grammar) to prefix


blaenddodiad

blaenddodiaid (plural)
blaenddodiad
flaenddodiad (soft)
mlaenddodiad

From blaenddodi (“to prefix”) + iad or blaen (“front”) + dodiad (“affix”).

(obsolete, grammar, linguistic morphology) prefix


islygadol

cy-adj

islygadol (feminine singular islygadol, plural islygadol, not comparable)

islygadol (feminine singular)
islygadol (plural)

Calque of English infraorbital. By surface analysis, is- (“sub-, infra-”) + llygadol (“ocular, orbital”).


ysgyfarn

ysgyfarnau (plural)
ysgyfarn
hysgyfarn (prothesis-h)
ysgyfar (alternative)

From Middle Welsh yskyvarn, from Proto-Brythonic *skuβarn. Cognate with Breton skouarn and Cornish skovarn.


cogwrn clust

cy-noun

cogwrn clust m (plural cogyrnau clustiau)

cogyrnau clustiau (plural)
cogwrn clust
gogwrn clust (soft)
nghogwrn clust
chogwrn clust


mân-lun

mân-luniau (plural)
mân-lun
fân-lun (soft)


ôl-ddodi

cy-verb

ôl-ddodi (first-person singular present ôl-ddodaf)

ôl-ddodaf (first-person present singular)
ôl-ddodaf (first-person future indicative present singular)
ôl-ddodi (future indicative present second-person singular)
ôl-ddoda (future indicative present singular third-person)
ôl-ddodwn (first-person future indicative plural present)
ôl-ddodwch (future indicative plural present second-person)
ôl-ddodant (future indicative plural present third-person)
ôl-ddodir (future impersonal indicative present)
ôl-ddodwn (conditional first-person singular)
ôl-ddodwn (first-person imperfect indicative singular subjunctive)
ôl-ddodit (conditional second-person singular)
ôl-ddodit (imperfect indicative second-person singular subjunctive)
ôl-ddodai (conditional singular third-person)
ôl-ddodai (imperfect indicative singular subjunctive third-person)
ôl-ddodem (conditional first-person plural)
ôl-ddodem (first-person imperfect indicative plural subjunctive)
ôl-ddodech (conditional plural second-person)
ôl-ddodech (imperfect indicative plural second-person subjunctive)
ôl-ddodent (conditional plural third-person)
ôl-ddodent (imperfect indicative plural subjunctive third-person)
ôl-ddodid (conditional impersonal)
ôl-ddodid (imperfect impersonal indicative subjunctive)
ôl-ddodais (first-person preterite singular)
ôl-ddodaist (preterite second-person singular)
ôl-ddododd (preterite singular third-person)
ôl-ddodasom (first-person plural preterite)
ôl-ddodasoch (plural preterite second-person)
ôl-ddodasant (plural preterite third-person)
ôl-ddodwyd (impersonal preterite)
ôl-ddodaswn (first-person pluperfect singular)
ôl-ddodasit (pluperfect second-person singular)
ôl-ddodasai (pluperfect singular third-person)
ôl-ddodasem (first-person pluperfect plural)
ôl-ddodasech (pluperfect plural second-person)
ôl-ddodasent (pluperfect plural third-person)
ôl-ddodasid (impersonal pluperfect)
ôl-ddodesid (impersonal pluperfect)
ôl-ddodwyf (first-person present singular subjunctive)
ôl-ddodych (present second-person singular subjunctive)
ôl-ddodo (present singular subjunctive third-person)
ôl-ddodom (first-person plural present subjunctive)
ôl-ddodoch (plural present second-person subjunctive)
ôl-ddodont (plural present subjunctive third-person)
ôl-ddoder (impersonal present subjunctive)
ôl-ddoda (imperative second-person singular)
ôl-ddoded (imperative singular third-person)
ôl-ddodwn (first-person imperative plural)
ôl-ddodwch (imperative plural second-person)
ôl-ddodent (imperative plural third-person)
ôl-ddoder (imperative impersonal)
ôl-ddodi (noun-from-verb singular)
ôl-ddodedig (participle singular)
ôl-ddodadwy (participle singular)
ôl-ddoda i (first-person future singular)
ôl-ddodaf i (first-person future singular)
ôl-ddodi di (future second-person singular)
ôl-ddodith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
ôl-ddodiff e (future singular third-person)
ôl-ddodwn ni (first-person future plural)
ôl-ddodwch chi (future plural second-person)
ôl-ddodan nhw (future plural third-person)
ôl-ddodwn i (conditional first-person singular)
ôl-ddodswn i (conditional first-person singular)
ôl-ddodet ti (conditional second-person singular)
ôl-ddodset ti (conditional second-person singular)
ôl-ddodai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
ôl-ddodsai fo (conditional singular third-person)
ôl-ddoden ni (conditional first-person plural)
ôl-ddodsen ni (conditional first-person plural)
ôl-ddodech chi (conditional plural second-person)
ôl-ddodsech chi (conditional plural second-person)
ôl-ddoden nhw (conditional plural third-person)
ôl-ddodsen nhw (conditional plural third-person)
ôl-ddodais i (first-person preterite singular)
ôl-ddodes i (first-person preterite singular)
ôl-ddodaist ti (preterite second-person singular)
ôl-ddodest ti (preterite second-person singular)
ôl-ddododd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
ôl-ddodon ni (first-person plural preterite)
ôl-ddodoch chi (plural preterite second-person)
ôl-ddodon nhw (plural preterite third-person)
ôl-ddoda (imperative second-person singular)
ôl-ddodwch (imperative plural second-person)
ôl-ddodi
hôl-ddodi (prothesis-h)
olddodi (alternative)

From ôl (“hind, rear”) + dodi (“to put, to place”).

af

(transitive, grammar) to suffix, to postfix


mewnddodi

cy-verb

mewnddodi (first-person singular present mewnddodaf)

mewnddodaf (first-person present singular)
mewnddodaf (first-person future indicative present singular)
mewnddodi (future indicative present second-person singular)
mewnddoda (future indicative present singular third-person)
mewnddodwn (first-person future indicative plural present)
mewnddodwch (future indicative plural present second-person)
mewnddodant (future indicative plural present third-person)
mewnddodir (future impersonal indicative present)
mewnddodwn (conditional first-person singular)
mewnddodwn (first-person imperfect indicative singular subjunctive)
mewnddodit (conditional second-person singular)
mewnddodit (imperfect indicative second-person singular subjunctive)
mewnddodai (conditional singular third-person)
mewnddodai (imperfect indicative singular subjunctive third-person)
mewnddodem (conditional first-person plural)
mewnddodem (first-person imperfect indicative plural subjunctive)
mewnddodech (conditional plural second-person)
mewnddodech (imperfect indicative plural second-person subjunctive)
mewnddodent (conditional plural third-person)
mewnddodent (imperfect indicative plural subjunctive third-person)
mewnddodid (conditional impersonal)
mewnddodid (imperfect impersonal indicative subjunctive)
mewnddodais (first-person preterite singular)
mewnddodaist (preterite second-person singular)
mewnddododd (preterite singular third-person)
mewnddodasom (first-person plural preterite)
mewnddodasoch (plural preterite second-person)
mewnddodasant (plural preterite third-person)
mewnddodwyd (impersonal preterite)
mewnddodaswn (first-person pluperfect singular)
mewnddodasit (pluperfect second-person singular)
mewnddodasai (pluperfect singular third-person)
mewnddodasem (first-person pluperfect plural)
mewnddodasech (pluperfect plural second-person)
mewnddodasent (pluperfect plural third-person)
mewnddodasid (impersonal pluperfect)
mewnddodesid (impersonal pluperfect)
mewnddodwyf (first-person present singular subjunctive)
mewnddodych (present second-person singular subjunctive)
mewnddodo (present singular subjunctive third-person)
mewnddodom (first-person plural present subjunctive)
mewnddodoch (plural present second-person subjunctive)
mewnddodont (plural present subjunctive third-person)
mewnddoder (impersonal present subjunctive)
mewnddoda (imperative second-person singular)
mewnddoded (imperative singular third-person)
mewnddodwn (first-person imperative plural)
mewnddodwch (imperative plural second-person)
mewnddodent (imperative plural third-person)
mewnddoder (imperative impersonal)
mewnddodi (noun-from-verb singular)
mewnddodedig (participle singular)
mewnddodadwy (participle singular)
mewnddoda i (first-person future singular)
mewnddodaf i (first-person future singular)
mewnddodi di (future second-person singular)
mewnddodith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
mewnddodiff e (future singular third-person)
mewnddodwn ni (first-person future plural)
mewnddodwch chi (future plural second-person)
mewnddodan nhw (future plural third-person)
mewnddodwn i (conditional first-person singular)
mewnddodswn i (conditional first-person singular)
mewnddodet ti (conditional second-person singular)
mewnddodset ti (conditional second-person singular)
mewnddodai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
mewnddodsai fo (conditional singular third-person)
mewnddoden ni (conditional first-person plural)
mewnddodsen ni (conditional first-person plural)
mewnddodech chi (conditional plural second-person)
mewnddodsech chi (conditional plural second-person)
mewnddoden nhw (conditional plural third-person)
mewnddodsen nhw (conditional plural third-person)
mewnddodais i (first-person preterite singular)
mewnddodes i (first-person preterite singular)
mewnddodaist ti (preterite second-person singular)
mewnddodest ti (preterite second-person singular)
mewnddododd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
mewnddodon ni (first-person plural preterite)
mewnddodoch chi (plural preterite second-person)
mewnddodon nhw (plural preterite third-person)
mewnddoda (imperative second-person singular)
mewnddodwch (imperative plural second-person)
mewnddodi
fewnddodi (soft)

From mewn- (“in-”) + dodi (“to put, to place”).


llostrudd

llostruddyn (diminutive)
llostrudd
lostrudd (soft)

Univerbation of llost (“tail, penis”) + rhudd (“red, ruddy”).


cancr

Inherited from Middle Welsh cagkyr, from Middle English canker, cancre. Doublet of canser.

(phytopathology) canker (decaying disease of plants)


trawsosod

From traws- (“trans-”) + gosod (“put, place”).


adgynorthwyydd

cy-noun

adgynorthwyydd m (plural adgynorthwyyddion)

/adɡənɔrˈθʊɨ̯.ɨ̞ð/

/adɡənɔrˈθʊi̯.ɪð/

ad- (“affirmative prefix”) + cynorthwyydd (“assistant, helper”).


diamedr

diamedrau (plural)
diamedr
ddiamedr (soft)
niamedr


gyriant fflach

cy-noun

gyriant fflach m (plural gyriannau fflach)


caeedig

cy-adj

caeedig (feminine singular caeedig, plural caeedig, not comparable)

caeedig (feminine singular)
caeedig (plural)
caeedig
gaeedig (soft)
nghaeedig
chaeedig

a closed mind, like a closed book, is only a block of paper

mae meddwl caeedig, fel llyfr caeedig, dim ond plocyn o bapur


llinoryn

cy-noun

llinoryn m (plural llinorod or llinorynnau)

llinorod (plural)
llinorynnau (plural)
llinoryn
linoryn (soft)


patriarchaeth

patriarchaeth f (plural patriarchaethau)

patriarchaethau (plural)
patriarchaeth
batriarchaeth (soft)
mhatriarchaeth
phatriarchaeth
patriarchiaeth (alternative)


rhagenw feddiannol

rhagenw feddiannol m (plural rhagenwau medddianol)

rhagenwau medddianol (plural)
rhagenw feddiannol
ragenw feddiannol (soft)


lluosydd

lluosyddion (plural)
lluosydd
luosydd (soft)

(arithmetic, economics, physics) multiplier


cyfnewidiol

cy-adj

cyfnewidiol (feminine singular cyfnewidiol, plural cyfnewidiol, not comparable)

cyfnewidiol (feminine singular)
cyfnewidiol (plural)
cyfnewidiol
gyfnewidiol (soft)
nghyfnewidiol
chyfnewidiol


cryno-lun

mân-luniau (plural)
cryno-lun
gryno-lun (soft)
nghryno-lun
chryno-lun


gwyriad cymedrig

cy-noun

gwyriad cymedrig m (plural gwyriadau cymedrig)


cynrhychiol

cy-adj

cynrhychiol (feminine singular cynrhychiol, plural cynrhychiol, not comparable)

cynrhychiol (feminine singular)
cynrhychiol (plural)
cynrhychiol
gynrhychiol (soft)
nghynrhychiol
chynrhychiol

Variant form of cyndrychiol or cynddrychiol, from cyn- + drych (“mirror, image”) + -iol.


llechen

llechennau (plural)
llechan (alternative North-Wales)

(computing) slate, tablet, tablet computer


ôl-ddod

ôl-ddodion (plural)
ôl-ddod
hôl-ddod (prothesis-h)

Back-formation from ôl-ddodi (“to suffix, to append at the end”).


tarddiad

tarddiadau (plural)
tarddiad
darddiad (soft)
nharddiad
tharddiad


Dirwasgiad Mawr

y Dirwasgiad Mawr (canonical masculine)
Dirwasgiad Mawr
Ddirwasgiad Mawr (soft)
Nirwasgiad Mawr

(economics, business, finance, historical) the Great Depression


cywasgiad

cywasgiadau (plural)
cywasgiad
gywasgiad (soft)
nghywasgiad
chywasgiad


rhaniad

rhaniadau (plural)
rhaniad
raniad (soft)

division, part, piece, fraction
(mathematics) fraction

division, part, piece, fraction
fraction


hafaliad llinol

cy-noun

hafaliad llinol m (plural hafaliadau llinol, not mutable)