prop

prop (mutation mutation-radical)
brop (mutation mutation-soft)
mhrop (mutation mutation-nasal)
phrop (mutation mutation-aspirate)


Andreas

Andreas (mutation mutation-radical)
Handreas (mutation prothesis-h)


opera

operâu (plural)
opera (mutation mutation-radical)
hopera (mutation prothesis-h)


draig

dreigiau (plural)
draig (mutation mutation-radical)
ddraig (mutation mutation-soft)
nraig (mutation mutation-nasal)

From Middle Welsh dreic, from Proto-Brythonic *drėg, earlier *drakū, from Latin dracō.


geiriadur

geiriaduron (plural)
geiriadur (mutation mutation-radical)
eiriadur (mutation mutation-soft)
ngeiriadur (mutation mutation-nasal)


Amos

Amos (mutation mutation-radical)
Hamos (mutation prothesis-h)

(biblical) A prophet, author of the Book of Amos


bardd

beirdd (plural)
bardd (mutation mutation-radical)
fardd (mutation mutation-soft)
mardd (mutation mutation-nasal)

From Proto-Brythonic *barð, from Proto-Celtic *bardos.


cenedl

cenhedloedd (plural)
cenedl (mutation mutation-radical)
genedl (mutation mutation-soft)
nghenedl (mutation mutation-nasal)
chenedl (mutation mutation-aspirate)

[ˈkʰɛnɛdl̩ˠ]

From Middle Welsh kenedyl, from Old Welsh kenedel (“kindred, family to the ninth degree of kinship”), from Proto-Brythonic *kenedl, from Proto-Celtic *kenetlom (“family”), from Proto-Indo-European *ken-.

inh

1588, Y Beibl cyssegr-lan, Luc 2:29-32:
Yr awr hon, Arglwydd, y gollyngi dy was mewn tangnefedd, yn ôl dy air: canys fy llygaid a welsant dy iachawdwriaeth, yr hon a baratoaist gerbron wyneb yr holl bobloedd; goleuni i oleuo y Cenhedloedd, a gogoniant dy bobl Israel.
Lord, now You are letting Your servant depart in peace, according to Your word; for my eyes have seen Your salvation which You have prepared before the face of all peoples, a light to bring revelation to the Gentiles, and the glory of Your people Israel.


Ioan

Borrowed from Late Latin Iōannēs, from Koine Greek Ἰωάννης (Iōánnēs), from Biblical Hebrew יוֹחָנָן (Yōḥānān).

(biblical) Certain men of the Christian Bible: John the Baptist, St John


llyfr

llyfrau (plural)
llyfr (mutation mutation-radical)
lyfr (mutation mutation-soft)

From Middle Welsh llyuyr, from Proto-Brythonic *llɨβr, borrowed from Latin liber, librum.


llyfrgell

llyfrgelloedd (plural)
llyfrgell (mutation mutation-radical)
lyfrgell (mutation mutation-soft)


awdl

awdlau (plural)
awdl (mutation mutation-radical)
hawdl (mutation prothesis-h)

A long poem written in Welsh using cynghanedd and one of twenty-four strict meters.


cywydd

cywyddau (plural)
cywydd (mutation mutation-radical)
gywydd (mutation mutation-soft)
nghywydd (mutation mutation-nasal)
chywydd (mutation mutation-aspirate)

Proto-Celtic *kom-wido-; compare Old Irish cubaid (“harmony”).


afanc

afancod (plural)
afanc (mutation mutation-radical)
hafanc (mutation prothesis-h)

From Proto-Brythonic *aβank, from Proto-Celtic *abankos (compare Breton avank, Irish abhac (“dwarf”)), from *abū (“river”). More at afon.


Rhufeiniad

Rhufeiniaid (plural)
Rhufeiniad (mutation mutation-radical)
Rufeiniad (mutation mutation-soft)

(in the plural, biblical) Romans (epistle)


môr-forwyn

môr-forynion (plural)
môr-forwyn (mutation mutation-radical)
fôr-forwyn (mutation mutation-soft)


llwyfan

llwyfannau (plural)
llwyfan (mutation mutation-radical)
lwyfan (mutation mutation-soft)

Possibly related to llwyfen (“elm tree”)


llawlyfr

llawlyfrau (plural)
llawlyfr (mutation mutation-radical)
lawlyfr (mutation mutation-soft)

/ˈɬau̯ˌlɨ̞vɨ̞r/

From llaw (“hand”) + llyfr (“book”), calque of English handbook.


llwyn

cy-noun

llwyn m (plural llwynau or llwyni, diminutive llwynyn)

llwynau (plural)
llwyni (plural)
llwynyn (diminutive)

From Middle Welsh llwyn, from Old Welsh loin, from Proto-Brythonic *lluɨn, from Latin lignum. Cognate with Old Breton loin, loen.

(especially in love poetry) the traditional rendezvous of lovers, symbol of love or romance


newyddiadur

newyddiadur m (plural newyddiaduron, not mutable)


papur newydd

papur newydd m (plural papurau newyddion)

papurau newyddion (plural)
papur newydd (mutation mutation-radical)
bapur newydd (mutation mutation-soft)
mhapur newydd (mutation mutation-nasal)
phapur newydd (mutation mutation-aspirate)

/ˈpapɨ̞r ˈnɛu̯.ɨ̞ð/


dynfarch

dynfeirch (plural)
dynfarch (mutation mutation-radical)
ddynfarch (mutation mutation-soft)
nynfarch (mutation mutation-nasal)

From dyn (“man”) + march (“horse, stallion”).


nymff

nymff f (plural nymffod or nimffau or nimffiaid, not mutable)

nymffod (plural)
nimffau (plural)
nimffiaid (plural)

Borrowed from Latin nympha (“nymph, bride”), from Ancient Greek νύμφη (númphē, “bride”).

(Greek mythology, Roman mythology) nymph


gwyddoniadur

gwyddoniaduron (plural)
gwyddoniadur (mutation mutation-radical)
wyddoniadur (mutation mutation-soft)
ngwyddoniadur (mutation mutation-nasal)


comedi

comedi m or f (plural comedïau or comedis)

comedïau (plural)
comedis (plural)
comedi (mutation mutation-radical)
gomedi (mutation mutation-soft)
nghomedi (mutation mutation-nasal)
chomedi (mutation mutation-aspirate)


cefn

cefn m (plural cefnau or cefnoedd or cefnydd)

cefnau (plural)
cefnoedd (plural)
cefnydd (plural)
cefn (mutation mutation-radical)
gefn (mutation mutation-soft)
nghefn (mutation mutation-nasal)
chefn (mutation mutation-aspirate)

From Middle Welsh keuen. Related to Breton kein (“back”), Cornish keyn (“back”), Gaulish Cebenna (“ridge, height”) (whence French Cévennes).

ar gefn

in addition to, as a consequence of, with regard to; at the expense of; on top, upon, up to

cefn lloer

full moon; crescent of the moon, half moon

cefnog

backed, having a back; strong, stout brave

yng nghefn

behind one's back, underhand; following, pursuing

(biblical) furlong (unit of length equivalent to a stadion)


cyfrol

cyfrolau (plural)
cyfrol (mutation mutation-radical)
gyfrol (mutation mutation-soft)
nghyfrol (mutation mutation-nasal)
chyfrol (mutation mutation-aspirate)


llenyddiaeth

llenyddiaethau (plural)
llenyddiaeth (mutation mutation-radical)
lenyddiaeth (mutation mutation-soft)

/ɬɛˈnəðjaɨ̯θ/

/ɬɛˈnəðjai̯θ/

From llenydd (“literary man, author, scholar”) + -iaeth.


llenydda

llenydda (mutation mutation-radical)
lenydda (mutation mutation-soft)

From llenydd (“literary person”), from llên (“literature”) + -ydd (agent suffix).

suffix

(rare) to practise literature; to be involved in literature through composition, study or simply interest


sallwyr

cy-noun

sallwyr m (plural sallwyrau, not mutable)

From Latin psaltērium (“psaltery”), from Ancient Greek ψαλτήριον (psaltḗrion, “a harp”).


nabl

cy-noun

nabl m or f (plural nablau, not mutable)

Borrowed from Ancient Greek νάβλα (nábla), from Biblical Hebrew נֵ֤בֶל (nēḇel).

(biblical, historical, music) a nabla, a psaltery


ŵyll

wylliaid (plural)
ŵyll (mutation mutation-radical)
hŵyll (mutation prothesis-h)


gwerin

gwerinoedd (plural)
gwerin (mutation mutation-radical)
werin (mutation mutation-soft)
ngwerin (mutation mutation-nasal)

From Proto-Brythonic *gwörin (compare Old Breton guerin glossing Latin factiō, Middle Breton gueryn (“people”)), from Proto-Celtic *worīnā (compare Old Irish foirenn glossing factiō, modern Irish foireann (“staff, team”)).


cwning

cwning f (collective, singulative cwningen)

cwningen (singulative)
cwning (mutation mutation-radical)
gwning (mutation mutation-soft)
nghwning (mutation mutation-nasal)
chwning (mutation mutation-aspirate)

Borrowed from Middle English conynges, the plural of conynge, borrowed from Anglo-Norman conil, from Latin cunīculus (“rabbit”).


gwreiddiadur

gwreiddiaduron (plural)
gwreiddiadur (mutation mutation-radical)
wreiddiadur (mutation mutation-soft)
ngwreiddiadur (mutation mutation-nasal)

/ɡwrɛɨ̞̯ðˈjadɨ̞r/

an etymological dictionary, an etymologicon


ieithadur

ieithaduron (plural)
ieithadur (mutation mutation-radical)
hieithadur (mutation prothesis-h)


llost

llostau (plural)
llost (mutation mutation-radical)
lost (mutation mutation-soft)

From Middle Welsh llost, from Proto-Brythonic *llost, from Proto-Celtic *lustā, from the Proto-Indo-European root *lew- (“todivide, to split”), possibly related to Old Norse ljósta (“to strike”). Cognate with Breton lost, Cornish lost, Gaulish losto-,

(poetry) the last section of a line of rhupunt, maintaing the main rhyme


mesur

From Middle Welsh messur, from Old Welsh mesur, from Proto-Brythonic *mesʉr, from British Vulgar Latin *mesūra, from Latin mēnsūra.


fampir

fampir m or f by sense (plural fampirod or fampiriaid, not mutable)


e-lyfr

e-lyfrau (plural)
e-lyfr (mutation mutation-radical)
he-lyfr (mutation prothesis-h)

/ˈeːlɨ̞vɨ̞r/


llatai

llateion (plural)
llatai (mutation mutation-radical)
latai (mutation mutation-soft)


nofel

Borrowed from English novel, from Old French novel, from Latin novellus.


Siôn Barrug

/ˌʃoːm ˈbarɨ̞ɡ/

From Siôn (“Siôn, John”) + barrug (“hoarfrost”).


sioe

Terwyn Davies sy'n cyflwyno rhaglen arbennig o faes Sioe Meirionnydd ar Stad y Rhug ger Corwen.

2022 August 29, “Sioe Meirionnydd”, in BBC Cymru Fyw:

Terwyn Davies presents a special programme from the Merioneth County Show in Corwen.


colofn

colofnau (plural)
colofn (mutation mutation-radical)
golofn (mutation mutation-soft)
ngholofn (mutation mutation-nasal)
cholofn (mutation mutation-aspirate)

From Middle Welsh colouen, from Proto-Brythonic *koloβ̃n, from Latin columna, ultimately from Proto-Indo-European *kelH- (“to rise, to be tall”). Doublet of celfi (“furniture”)

der

(bardic poetry) fundamental or principal meter


lwyn

Borrowed from Old French loigne or Middle English loyne, ultimately from Latin lumbus (“loin”).

the loins as the part of the body about which the clothes were bound, a sword fastened, etc.

the loins as the seat of physical strength and of generative power


diafol

diefyl (plural)
diafoliaid (plural)
diafol (mutation mutation-radical)
ddiafol (mutation mutation-soft)
niafol (mutation mutation-nasal)

From Middle Welsh diauul, from Proto-Brythonic *diaβul, from Latin diabolus. Doublet of diawl.


hunangofiant

cy-noun

hunangofiant m (plural hunangofiannau or hunangofiaint, not mutable)

hunangofiannau (plural)
hunangofiaint (plural)

From hunan (“self”) + cofiant (“biography”), from cof (“memory”).


Jac y Rhew

From Jac (“Jack”) + y (“(of) the”) + rhew (“ice, frost”).


Morus y Gwynt

Morus y Gwynt (mutation mutation-radical)
Forus y Gwynt (mutation mutation-soft)

/ˌmɔrɨ̞s ə ˈɡwɨ̞nt/

From Morus (“Morris”) + y (“(of) the”) + gwynt (“wind”).

Morus y Gwynt ac Ifan y Glaw / Daflodd fy nghap i ganol y baw.

Morris the Wind and John the Rain / Threw my cap right into the mud.

"Morris the Wind" (personification of the wind)


Ifan y Glaw

Ifan y Glaw (mutation mutation-radical)
Hifan y Glaw (mutation prothesis-h)

From Ifan (“Ivan, John”) + y (“(of) the”) + glaw (“rain”).

"John the Rain" (personification of the rain)


ffuglen

From ffug (“fake, false”) + llên (“literature”).


ungorn

cy-adj

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

ungorn (feminine singular)
ungorn (plural)
ungorn (mutation mutation-radical)
hungorn (mutation prothesis-h)

From un + corn. Calque of Latin unicornis.


termiadur

termiaduron (plural)
termiadur (mutation mutation-radical)
dermiadur (mutation mutation-soft)
nhermiadur (mutation mutation-nasal)
thermiadur (mutation mutation-aspirate)


unnos

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

unnos (feminine singular)
unnos (plural)
unnos (mutation mutation-radical)
hunnos (mutation prothesis-h)

tŷ unnos

house or hut built in one night on common land by a squatter


llenydd

llenyddion (plural)
llenydd (mutation mutation-radical)
lenydd (mutation mutation-soft)

From llên (“literature”) + -ydd (agent suffix).


gwyllgi

gwyllgwn (plural)
gwyllgi (mutation mutation-radical)
wyllgi (mutation mutation-soft)
ngwyllgi (mutation mutation-nasal)

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.


dychanol

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

dychanol (feminine singular)
dychanol (plural)
mor ddychanol (equative)
mwy dychanol (comparative)
mwyaf dychanol (superlative)
dychanol (mutation mutation-radical)
ddychanol (mutation mutation-soft)
nychanol (mutation mutation-nasal)


dychan

dychanau (plural)
dychan (mutation mutation-radical)
ddychan (mutation mutation-soft)
nychan (mutation mutation-nasal)


bleidd-ddyn

cy-noun

bleidd-ddyn m (plural bleidd-ddynion or blaidd-ddynion)

bleidd-ddynion (plural)
blaidd-ddynion (plural)
bleidd-ddyn (mutation mutation-radical)
fleidd-ddyn (mutation mutation-soft)
mleidd-ddyn (mutation mutation-nasal)


dychanu

cy-verb

dychanu (first-person singular present dychanaf)

dychanaf (first-person present singular)
dychanaf (first-person future indicative present singular)
dycheni (future indicative present second-person singular)
dychan (future indicative present singular third-person)
dychana (future indicative present singular third-person)
dychanwn (first-person future indicative plural present)
dychenwch (future indicative plural present second-person)
dychanwch (future indicative plural present second-person)
dychanant (future indicative plural present third-person)
dychenir (future impersonal indicative present)
dychanwn (conditional first-person singular)
dychanwn (first-person imperfect indicative singular subjunctive)
dychanit (conditional second-person singular)
dychanit (imperfect indicative second-person singular subjunctive)
dychanai (conditional singular third-person)
dychanai (imperfect indicative singular subjunctive third-person)
dychanem (conditional first-person plural)
dychanem (first-person imperfect indicative plural subjunctive)
dychanech (conditional plural second-person)
dychanech (imperfect indicative plural second-person subjunctive)
dychanent (conditional plural third-person)
dychanent (imperfect indicative plural subjunctive third-person)
dychenid (conditional impersonal)
dychenid (imperfect impersonal indicative subjunctive)
dychenais (first-person preterite singular)
dychenaist (preterite second-person singular)
dychanodd (preterite singular third-person)
dychanasom (first-person plural preterite)
dychanasoch (plural preterite second-person)
dychanasant (plural preterite third-person)
dychanwyd (impersonal preterite)
dychanaswn (first-person pluperfect singular)
dychanasit (pluperfect second-person singular)
dychanasai (pluperfect singular third-person)
dychanasem (first-person pluperfect plural)
dychanasech (pluperfect plural second-person)
dychanasent (pluperfect plural third-person)
dychanasid (impersonal pluperfect)
dychanesid (impersonal pluperfect)
dychanwyf (first-person present singular subjunctive)
dychenych (present second-person singular subjunctive)
dychano (present singular subjunctive third-person)
dychanom (first-person plural present subjunctive)
dychanoch (plural present second-person subjunctive)
dychanont (plural present subjunctive third-person)
dychaner (impersonal present subjunctive)
dychan (imperative second-person singular)
dychana (imperative second-person singular)
dychaned (imperative singular third-person)
dychanwn (first-person imperative plural)
dychenwch (imperative plural second-person)
dychanwch (imperative plural second-person)
dychanent (imperative plural third-person)
dychaner (imperative impersonal)
dychanu (noun-from-verb)
dychanedig (participle)
dychanadwy (participle)
dychana i (first-person future singular)
dychanaf i (first-person future singular)
dychani di (future second-person singular)
dychanith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
dychaniff e (future singular third-person)
dychanwn ni (first-person future plural)
dychanwch chi (future plural second-person)
dychanan nhw (future plural third-person)
dychanwn i (conditional first-person singular)
dychanswn i (conditional first-person singular)
dychanet ti (conditional second-person singular)
dychanset ti (conditional second-person singular)
dychanai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
dychansai fo (conditional singular third-person)
dychanen ni (conditional first-person plural)
dychansen ni (conditional first-person plural)
dychanech chi (conditional plural second-person)
dychansech chi (conditional plural second-person)
dychanen nhw (conditional plural third-person)
dychansen nhw (conditional plural third-person)
dychanais i (first-person preterite singular)
dychanes i (first-person preterite singular)
dychanaist ti (preterite second-person singular)
dychanest ti (preterite second-person singular)
dychanodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
dychanon ni (first-person plural preterite)
dychanoch chi (plural preterite second-person)
dychanon nhw (plural preterite third-person)
dychana (imperative second-person singular)
dychanwch (imperative plural second-person)

(transitive) to satirize, mock, ridicule


ffilm fer

cy-noun

ffilm fer f (plural ffilmiau byrion, not mutable)


mesur diodl

mesur diodl (mutation mutation-radical)
fesur diodl (mutation mutation-soft)

From mesur (“measure; metre”) + diodl (“rhymeless”).


penrhydd

cy-adj

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

penrhydd (feminine singular)
penrhydd (plural)
mor benrhydd (equative)
mwy penrhydd (comparative)
mwyaf penrhydd (superlative)
penrhydd (mutation mutation-radical)
benrhydd (mutation mutation-soft)
mhenrhydd (mutation mutation-nasal)
phenrhydd (mutation mutation-aspirate)


diodl

diodl (feminine singular diodl, plural diodl, unknown comparative)

diodl (feminine singular)
diodl (plural)