lluosogi

lluosogi (first-person singular present lluosogaf)

lluosogaf (first-person present singular)
lluosogaf (first-person future indicative present singular)
lluosogi (future indicative present second-person singular)
lluosog (future indicative present singular third-person)
lluosoga (future indicative present singular third-person)
lluosogwn (first-person future indicative plural present)
lluosogwch (future indicative plural present second-person)
lluosogant (future indicative plural present third-person)
lluosogir (future impersonal indicative present)
lluosogwn (conditional first-person singular)
lluosogwn (first-person imperfect indicative singular subjunctive)
lluosogit (conditional second-person singular)
lluosogit (imperfect indicative second-person singular subjunctive)
lluosogai (conditional singular third-person)
lluosogai (imperfect indicative singular subjunctive third-person)
lluosogem (conditional first-person plural)
lluosogem (first-person imperfect indicative plural subjunctive)
lluosogech (conditional plural second-person)
lluosogech (imperfect indicative plural second-person subjunctive)
lluosogent (conditional plural third-person)
lluosogent (imperfect indicative plural subjunctive third-person)
lluosogid (conditional impersonal)
lluosogid (imperfect impersonal indicative subjunctive)
lluosogais (first-person preterite singular)
lluosogaist (preterite second-person singular)
lluosogodd (preterite singular third-person)
lluosogasom (first-person plural preterite)
lluosogasoch (plural preterite second-person)
lluosogasant (plural preterite third-person)
lluosogwyd (impersonal preterite)
lluosogaswn (first-person pluperfect singular)
lluosogasit (pluperfect second-person singular)
lluosogasai (pluperfect singular third-person)
lluosogasem (first-person pluperfect plural)
lluosogasech (pluperfect plural second-person)
lluosogasent (pluperfect plural third-person)
lluosogasid (impersonal pluperfect)
lluosogesid (impersonal pluperfect)
lluosogwyf (first-person present singular subjunctive)
lluosogych (present second-person singular subjunctive)
lluosogo (present singular subjunctive third-person)
lluosogom (first-person plural present subjunctive)
lluosogoch (plural present second-person subjunctive)
lluosogont (plural present subjunctive third-person)
lluosoger (impersonal present subjunctive)
lluosog (imperative second-person singular)
lluosoga (imperative second-person singular)
lluosoged (imperative singular third-person)
lluosogwn (first-person imperative plural)
lluosogwch (imperative plural second-person)
lluosogent (imperative plural third-person)
lluosoger (imperative impersonal)
lluosogi (noun-from-verb)
lluosogedig (participle)
lluosogadwy (participle)
lluosoga i (first-person future singular)
lluosogaf i (first-person future singular)
lluosogi di (future second-person singular)
lluosogith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
lluosogiff e (future singular third-person)
lluosogwn ni (first-person future plural)
lluosogwch chi (future plural second-person)
lluosogan nhw (future plural third-person)
lluosogwn i (conditional first-person singular)
lluosogswn i (conditional first-person singular)
lluosoget ti (conditional second-person singular)
lluosogset ti (conditional second-person singular)
lluosogai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
lluosogsai fo (conditional singular third-person)
lluosogen ni (conditional first-person plural)
lluosogsen ni (conditional first-person plural)
lluosogech chi (conditional plural second-person)
lluosogsech chi (conditional plural second-person)
lluosogen nhw (conditional plural third-person)
lluosogsen nhw (conditional plural third-person)
lluosogais i (first-person preterite singular)
lluosoges i (first-person preterite singular)
lluosogaist ti (preterite second-person singular)
lluosogest ti (preterite second-person singular)
lluosogodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
lluosogon ni (first-person plural preterite)
lluosogoch chi (plural preterite second-person)
lluosogon nhw (plural preterite third-person)
lluosoga (imperative second-person singular)
lluosogwch (imperative plural second-person)
lluosogi (mutation mutation-radical)
luosogi (mutation mutation-soft)

/ɬɨ̞.ɔˈsɔɡɪ/

From Middle Welsh lluossogi. By surface analysis, lluosog + -i.


effaith tŷ gwydr

effaith tŷ gwydr (mutation mutation-radical)
heffaith tŷ gwydr (mutation prothesis-h)


balchder

1588, Y Beibl cyssegr-lan, Diarhebion 16:18:
Balchder sydd yn myned o flaen dinistr: ac uchder ysbryd o flaen cwymp.
Pride goes before destruction, and a haughty spirit before a fall.


siachmat

cy-noun

siachmat m (plural siachmatau, not mutable)

Learned borrowing from Arabic شَاه مَاتَ (šāh māta), from Persian شاه مات (šâh mât, “the king [is] amazed”).


siach

From siachmat, by analogy with English check from checkmate. A learned borrowing from Arabic شَاه مَاتَ (šāh māta), from Persian شاه مات (šâh mât, “the king [is] amazed”).


comiwnyddol

cy-adj

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

comiwnyddol (feminine singular)
comiwnyddol (plural)
mor gomiwnyddol (equative)
mwy comiwnyddol (comparative)
mwyaf comiwnyddol (superlative)
comiwnyddol (mutation mutation-radical)
gomiwnyddol (mutation mutation-soft)
nghomiwnyddol (mutation mutation-nasal)
chomiwnyddol (mutation mutation-aspirate)


isetholiad

isetholiadau (plural)
isetholiad (mutation mutation-radical)
hisetholiad (mutation prothesis-h)

From is- (“sub-”) + etholiad (“election”).


ymgyrchydd

ymgyrchyddion (plural)
ymgyrchydd (mutation mutation-radical)
hymgyrchydd (mutation prothesis-h)

/əmˈɡərχɨ̞ð/


cyngor tref

cynghorau tref (plural)
cyngor tref (mutation mutation-radical)
gyngor tref (mutation mutation-soft)
nghyngor tref (mutation mutation-nasal)
chyngor tref (mutation mutation-aspirate)


heddychwr

cy-noun

heddychwr m (plural heddychwyr, not mutable)


cynghorydd

cyngoryddion (plural)
cynghorydd (mutation mutation-radical)
gynghorydd (mutation mutation-soft)
nghynghorydd (mutation mutation-nasal)
chynghorydd (mutation mutation-aspirate)

/kəŋˈhɔrɨ̞ð/

advisor (one who offers advice; counselor; consultant)

counselor (professional who counsels people)


sosialydd

sosialydd m (plural sosialyddion or sosialwyr, not mutable)

sosialyddion (plural)
sosialwyr (plural)


sosialaidd

cy-adj

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

sosialaidd (feminine singular)
sosialaidd (plural)


Eleri

Eleri (mutation mutation-radical)
Heleri (mutation prothesis-h)

a male given name from Latin, equivalent to English Hilary


euogfarn

euogfarnau (plural)
euogfarn (mutation mutation-radical)
heuogfarn (mutation prothesis-h)

From euog (“guilty”) + barn (“judgement, sentence”).

af

euogfarn droseddol

euogfarn anghyfiawn

euogfarnau heb eu disbyddu


ditiad

ditiadau (plural)
ditiad (mutation mutation-radical)
dditiad (mutation mutation-soft)
nitiad (mutation mutation-nasal)


diannod

cy-adj

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

diannod (feminine singular)
diannod (plural)
mor ddiannod (equative)
mwy diannod (comparative)
mwyaf diannod (superlative)
diannod (mutation mutation-radical)
ddiannod (mutation mutation-soft)
niannod (mutation mutation-nasal)

From di- (“without”) + annod (“delay, postponement”).

af

collfarn ddiannod

euogfarn ddiannod


agored

cy-adj

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

agored (feminine singular)
agored (plural)
mor agored (equative)
mwy agored (comparative)
mwyaf agored (superlative)
agored (mutation mutation-radical)
hagored (mutation prothesis-h)


euogfarnu

cy-verb

euogfarnu (first-person singular present euogfarnaf)

euogfarnaf (first-person present singular)
euogfarnaf (first-person future indicative present singular)
euogferni (future indicative present second-person singular)
euogfarna (future indicative present singular third-person)
euogfarnwn (first-person future indicative plural present)
euogfernwch (future indicative plural present second-person)
euogfarnwch (future indicative plural present second-person)
euogfarnant (future indicative plural present third-person)
euogfernir (future impersonal indicative present)
euogfarnwn (conditional first-person singular)
euogfarnwn (first-person imperfect indicative singular subjunctive)
euogfarnit (conditional second-person singular)
euogfarnit (imperfect indicative second-person singular subjunctive)
euogfarnai (conditional singular third-person)
euogfarnai (imperfect indicative singular subjunctive third-person)
euogfarnem (conditional first-person plural)
euogfarnem (first-person imperfect indicative plural subjunctive)
euogfarnech (conditional plural second-person)
euogfarnech (imperfect indicative plural second-person subjunctive)
euogfarnent (conditional plural third-person)
euogfarnent (imperfect indicative plural subjunctive third-person)
euogfernid (conditional impersonal)
euogfernid (imperfect impersonal indicative subjunctive)
euogfernais (first-person preterite singular)
euogfernaist (preterite second-person singular)
euogfarnodd (preterite singular third-person)
euogfarnasom (first-person plural preterite)
euogfarnasoch (plural preterite second-person)
euogfarnasant (plural preterite third-person)
euogfarnwyd (impersonal preterite)
euogfarnaswn (first-person pluperfect singular)
euogfarnasit (pluperfect second-person singular)
euogfarnasai (pluperfect singular third-person)
euogfarnasem (first-person pluperfect plural)
euogfarnasech (pluperfect plural second-person)
euogfarnasent (pluperfect plural third-person)
euogfarnasid (impersonal pluperfect)
euogfarnesid (impersonal pluperfect)
euogfarnwyf (first-person present singular subjunctive)
euogfernych (present second-person singular subjunctive)
euogfarno (present singular subjunctive third-person)
euogfarnom (first-person plural present subjunctive)
euogfarnoch (plural present second-person subjunctive)
euogfarnont (plural present subjunctive third-person)
euogfarner (impersonal present subjunctive)
euogfarna (imperative second-person singular)
euogfarned (imperative singular third-person)
euogfarnwn (first-person imperative plural)
euogfernwch (imperative plural second-person)
euogfarnwch (imperative plural second-person)
euogfarnent (imperative plural third-person)
euogfarner (imperative impersonal)
euogfarnu (noun-from-verb)
euogfarnedig (participle)
euogfarnadwy (participle)
euogfarna i (first-person future singular)
euogfarnaf i (first-person future singular)
euogfarni di (future second-person singular)
euogfarnith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
euogfarniff e (future singular third-person)
euogfarnwn ni (first-person future plural)
euogfarnwch chi (future plural second-person)
euogfarnan nhw (future plural third-person)
euogfarnwn i (conditional first-person singular)
euogfarnswn i (conditional first-person singular)
euogfarnet ti (conditional second-person singular)
euogfarnset ti (conditional second-person singular)
euogfarnai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
euogfarnsai fo (conditional singular third-person)
euogfarnen ni (conditional first-person plural)
euogfarnsen ni (conditional first-person plural)
euogfarnech chi (conditional plural second-person)
euogfarnsech chi (conditional plural second-person)
euogfarnen nhw (conditional plural third-person)
euogfarnsen nhw (conditional plural third-person)
euogfarnais i (first-person preterite singular)
euogfarnes i (first-person preterite singular)
euogfarnaist ti (preterite second-person singular)
euogfarnest ti (preterite second-person singular)
euogfarnodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
euogfarnon ni (first-person plural preterite)
euogfarnoch chi (plural preterite second-person)
euogfarnon nhw (plural preterite third-person)
euogfarna (imperative second-person singular)
euogfarnwch (imperative plural second-person)
euogfarnu (mutation mutation-radical)
heuogfarnu (mutation prothesis-h)


disbyddu

disbyddu (first-person singular present disbyddaf)

disbyddaf (first-person present singular)
disbyddaf (first-person future indicative present singular)
disbyddi (future indicative present second-person singular)
disbydda (future indicative present singular third-person)
disbyddwn (first-person future indicative plural present)
disbyddwch (future indicative plural present second-person)
disbyddant (future indicative plural present third-person)
disbyddir (future impersonal indicative present)
disbyddwn (conditional first-person singular)
disbyddwn (first-person imperfect indicative singular subjunctive)
disbyddit (conditional second-person singular)
disbyddit (imperfect indicative second-person singular subjunctive)
disbyddai (conditional singular third-person)
disbyddai (imperfect indicative singular subjunctive third-person)
disbyddem (conditional first-person plural)
disbyddem (first-person imperfect indicative plural subjunctive)
disbyddech (conditional plural second-person)
disbyddech (imperfect indicative plural second-person subjunctive)
disbyddent (conditional plural third-person)
disbyddent (imperfect indicative plural subjunctive third-person)
disbyddid (conditional impersonal)
disbyddid (imperfect impersonal indicative subjunctive)
disbyddais (first-person preterite singular)
disbyddaist (preterite second-person singular)
disbyddodd (preterite singular third-person)
disbyddasom (first-person plural preterite)
disbyddasoch (plural preterite second-person)
disbyddasant (plural preterite third-person)
disbyddwyd (impersonal preterite)
disbyddaswn (first-person pluperfect singular)
disbyddasit (pluperfect second-person singular)
disbyddasai (pluperfect singular third-person)
disbyddasem (first-person pluperfect plural)
disbyddasech (pluperfect plural second-person)
disbyddasent (pluperfect plural third-person)
disbyddasid (impersonal pluperfect)
disbyddesid (impersonal pluperfect)
disbyddwyf (first-person present singular subjunctive)
disbyddych (present second-person singular subjunctive)
disbyddo (present singular subjunctive third-person)
disbyddom (first-person plural present subjunctive)
disbyddoch (plural present second-person subjunctive)
disbyddont (plural present subjunctive third-person)
disbydder (impersonal present subjunctive)
disbydda (imperative second-person singular)
disbydded (imperative singular third-person)
disbyddwn (first-person imperative plural)
disbyddwch (imperative plural second-person)
disbyddent (imperative plural third-person)
disbydder (imperative impersonal)
disbyddu (noun-from-verb)
disbyddedig (participle)
disbyddadwy (participle)
disbydda i (first-person future singular)
disbyddaf i (first-person future singular)
disbyddi di (future second-person singular)
disbyddith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
disbyddiff e (future singular third-person)
disbyddwn ni (first-person future plural)
disbyddwch chi (future plural second-person)
disbyddan nhw (future plural third-person)
disbyddwn i (conditional first-person singular)
disbyddswn i (conditional first-person singular)
disbyddet ti (conditional second-person singular)
disbyddset ti (conditional second-person singular)
disbyddai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
disbyddsai fo (conditional singular third-person)
disbydden ni (conditional first-person plural)
disbyddsen ni (conditional first-person plural)
disbyddech chi (conditional plural second-person)
disbyddsech chi (conditional plural second-person)
disbydden nhw (conditional plural third-person)
disbyddsen nhw (conditional plural third-person)
disbyddais i (first-person preterite singular)
disbyddes i (first-person preterite singular)
disbyddaist ti (preterite second-person singular)
disbyddest ti (preterite second-person singular)
disbyddodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
disbyddon ni (first-person plural preterite)
disbyddoch chi (plural preterite second-person)
disbyddon nhw (plural preterite third-person)
disbydda (imperative second-person singular)
disbyddwch (imperative plural second-person)
disbyddu (mutation mutation-radical)
ddisbyddu (mutation mutation-soft)
nisbyddu (mutation mutation-nasal)

euogfarn wedi'i disbyddu

euogfarn heb ei disbyddu


ymwelydd

cy-noun

ymwelydd m (plural ymwelyddion, feminine ymwelyddes)

ymwelyddion (plural)
ymwelyddes (feminine)
ymwelydd (mutation mutation-radical)
hymwelydd (mutation prothesis-h)


milfeddyg

milfeddygon (plural)
milfeddyg (mutation mutation-radical)
filfeddyg (mutation mutation-soft)

/mɪlˈvɛðɨ̞ɡ/

/mɪlˈveːðɪɡ/


wyth ar ddeugain

wyth ar ddeugain (mutation mutation-radical)
hwyth ar ddeugain (mutation prothesis-h)

/ˌuːɨ̯θ ar ˈðei̯ɡai̯n/

/ˌuːɨ̯θ ar ˈðei̯ɡɛn/

/ˌʊi̯θ ar ˈhɪɡɛn/

/ˌʊi̯θ ar ˈðei̯ɡɛn/

From wyth (“eight”) + ar (“on”) + deugain (“forty”).

com

Mae wyth morwr ar ddeugain ar y llong.


tri a deugain

head

tri a deugain m (feminine tair a deugain)

tair a deugain (feminine)
tri a deugain (mutation mutation-radical)
dri a deugain (mutation mutation-soft)
nhri a deugain (mutation mutation-nasal)
thri a deugain (mutation mutation-aspirate)

From tri (“three”) + ac (“and”) + deugain (“forty”).

com

Heb gyfrif ei lluaws maes-drefi, saif y ddinas ei hun ar ddeugain milldir ysgwir o dir, gyda thair milldir a deugain o afon fordwyol yn rhedeg drwyddi.

Without counting its many suburbs, the city itself stands on forty square miles of land, with forty three miles of navigable river running through it.


maenordy

maenordai (plural)
maenordy (mutation mutation-radical)
faenordy (mutation mutation-soft)


bonheddwr

bonheddwyr (plural)
bonheddwr (mutation mutation-radical)
fonheddwr (mutation mutation-soft)
monheddwr (mutation mutation-nasal)


pendefiges

pendefigesau (plural)
pendefiges (mutation mutation-radical)
bendefiges (mutation mutation-soft)
mhendefiges (mutation mutation-nasal)
phendefiges (mutation mutation-aspirate)


pendefig

cy-noun

pendefig m (plural pendefigion, feminine pendefiges)

pendefigion (plural)
pendefiges (feminine)
pendefig (mutation mutation-radical)
bendefig (mutation mutation-soft)
mhendefig (mutation mutation-nasal)
phendefig (mutation mutation-aspirate)


Eirwyn

Eirwyn (mutation mutation-radical)
Heirwyn (mutation prothesis-h)

From eira (“snow”) + gwyn (“white, fair; blessed”).


Eurwen

Eurwen (mutation mutation-radical)
Heurwen (mutation prothesis-h)

From aur (“gold”) + gwen (“white, fair; blessed”).


Eurwyn

Eurwyn (mutation mutation-radical)
Heurwyn (mutation prothesis-h)

From aur (“gold”) + gwyn (“white, fair; blessed”).


Euryn

Euryn (mutation mutation-radical)
Heuryn (mutation prothesis-h)

From aur (“gold”) + -yn meaning "golden one".


Eirwen

Eirwen (mutation mutation-radical)
Heirwen (mutation prothesis-h)

From eira (“snow”) + gwen (“white, fair; blessed”).


plasty

plastai (plural)
plasty (mutation mutation-radical)
blasty (mutation mutation-soft)
mhlasty (mutation mutation-nasal)
phlasty (mutation mutation-aspirate)


brodordy

brodordai (plural)
brodordy (mutation mutation-radical)
frodordy (mutation mutation-soft)
mrodordy (mutation mutation-nasal)

From brodor, brodyr (“brothers; friars”) + tŷ (“house”).


eilfed

cy-adj

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

eilfed (feminine singular)
eilfed (plural)
eilfed (mutation mutation-radical)
heilfed (mutation prothesis-h)

1842, Almanac am 1842 yr hon yw yr eilfed ar ol blwyddyn y naid, a'r 6ed, o deyrnasiad ei mawrhydi Y Frenhines Victoria, Brenhines Prydain fawr a'r Ywerddon. [Almanac for 1842 which is the second after the leap year, and the 6th, of the reign of her majesty Queen Victoria, Queen of Great Britain and Ireland.], L.E. Jones:


tri deng

tri deng (mutation mutation-radical)
dri deng (mutation mutation-soft)
nhri deng (mutation mutation-nasal)
thri deng (mutation mutation-aspirate)

Yr oedd Tywyn ei hunan yn fwy na chilomedr o’r môr yr adeg hynny. Codwyd y Promenâd Fictoraidd yn 1889 ac eto, amwynder oedd hyn yn hytrach na wal y môr ac mae’n debygol na chyrhaeddodd y môr y wal o gwbl yn ystod y tri deng mlynedd canlynol.

Tywyn itself was more than a kilometre from the sea at that time. The Victorian Promenade was built in 1889 and again, this was an amenity rather than the wall of the sea and it is likely that the sea did not reach the wall at all during the following thirty years.

(cardinal number, decimal) Alternative form of tri deg (“thirty”)


unarddegfed

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

unarddegfed (feminine singular)
unarddegfed (plural)
unarddegfed (mutation mutation-radical)
hunarddegfed (mutation prothesis-h)

[1832, William Owen Pughe, A Dictionary of the Welsh Language explained in English: with numerous illustrations from the literary remains and from the living speech of the Cymmry : To which is prefixed a Welsh grammar, Volume 1 (overall work in English), Gee, page 106:

Ond i fynd â fo cam ymhellach, model arall fyddai bod yr etholwyr yn ethol y cadeirydd, bod gennych chi 10 arweinydd, ond bod gennych chi, wedyn, unarddegfed person yn cael ei ethol gan y bobl yn yr ardal, fel bod gennych chi’r atebolrwydd clir yna.

2017 March 29, Sian Gwenllian, quotee, The Record of Proceedings: The Equality, Local Government and Communities Committee, National Assembly for Wales, section 101:

But taking it a step further, another model would be that the electorate elect the chair, that you have 10 leaders, and that you then have an eleventh person who is elected by the people in the area, so that you have that clear accountability.


triarddegfed

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

triarddegfed (feminine singular)
triarddegfed (plural)
triarddegfed (mutation mutation-radical)
driarddegfed (mutation mutation-soft)
nhriarddegfed (mutation mutation-nasal)
thriarddegfed (mutation mutation-aspirate)

Cynnaliwyd triarddegfed gyfarfod blyneddol y Gymdeithas hon yn Paris, dydd Iau, yr 20fed o Ebrill.

1837, Greal y bedyddwyr neu Ystorfa efenglaidd, page 240:

The thirteenth annual meeting this Society was held in Paris on Thursday, the 20th of April.

(ordinal number, nonstandard) thirteenth


un ar bymtheg a thrigain

un ar bymtheg a thrigain (mutation mutation-radical)
hun ar bymtheg a thrigain (mutation prothesis-h)

/ˌɨːn ar ˈbəmθɛɡ a ˈθrɪɡai̯n/

/ˌɨːn ar ˈbəmθaɡ a ˈθrɪɡɛn/

/ˌiːn ar ˈbəmθɛɡ a ˈθriːɡɛn/

/ˌiːn ar ˈbəmθɛɡ a ˈθrɪɡɛn/

From un ar bymtheg (“sixteen”) + ac + trigain (“sixty”).

com

Bu farw Dr. Roger Hughes, Bala, ddydd Iau, yn un ar bymtheng a thriugain mlwydd oed.

1909 October 8, “Hyn a'r Llall”, in Llangollen Advertiser, page 7:

Dr. Roger Hughes, Bala, died on Thursday at the age of seventy six.

(cardinal number, vigesimal) seventy six


undeg saith

Modd hyn cafwyd sylw uniongyrchol undeg saith rhwng gan roddi yn faffr y tri sydd allan o gyraedd presenoli, pobl Bro Hydref ond yn llwyr gymeradwyo y mudiad yn gwneud dau ddeg yn y rheng eisoes.

(cardinal number) Nonstandard spelling of un deg saith (“twelve”).


ailarbymtheg

ailarbymtheg (mutation mutation-radical)
hailarbymtheg (mutation prothesis-h)

dichon oddeutu yr ailarbymtheg o'r mis yma

1867 July 27, “Llythyr y Parch. S. Roberts”, in Y Tyst Cymreig, page 6:

maybe around the seventeenth time this month


eilfedarbymtheg

eilfedarbymtheg (mutation mutation-radical)
heilfedarbymtheg (mutation prothesis-h)

Yr eilfedarbymtheg ydoedd William Wordsworth, a anwyd 1771; bu farw Ebrill 21, 1850.

1868 July 31, “Y Beirdd Brenhinol (Poet Laureates)”, in Y Dydd, page 11:

The seventeenth was William Wordsworth, born 1771; died April 21, 1850.


unarbymthegfed

cy-adj

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

unarbymthegfed (feminine singular)
unarbymthegfed (plural)
unarbymthegfed (mutation mutation-radical)
hunarbymthegfed (mutation prothesis-h)

From unarbymtheg (“16”) + -fed (“[-th]”).

[1832, William Owen Pughe, A Dictionary of the Welsh Language explained in English: with numerous illustrations from the literary remains and from the living speech of the Cymmry : To which is prefixed a Welsh grammar, Volume 1 (overall work in English), Gee, pages 106–107:

Awrgrym gair ac ymadrodd, sef llythyr, ar y degfed, ar yr unarbymthegfed, ac a yr ugeinfed, ac ar y pedairarhugeinfed.

1888 March 5, Iolo Morganwg, “Dosparth yr Awgrym”, in Y geninen cylchgrawn cenedlaethol, number Ceninen Gwyl Dewi, page 56:

Suggest a word and a phrase, namely a letter, on the tenth, on the sixteenth, and on the twentieth, and on the twenty-fourth.


ailarbymtheg ar hugain

ailarbymtheg ar hugain (mutation mutation-radical)
hailarbymtheg ar hugain (mutation prothesis-h)

Cyfarfu yr Ailarbymtheg ar hugain Gydgyngorfa mewn eisteddiad neillduol ar y pedwerydd o Orphenaf, yn unol â ɡalawd yr Arlywydd.

1866, John William Jones, Hanes y gwrthryfel mawr yn y Talaethau Uredig, etc. (Y gyfrol gyntaf.)., J. Mather Jones, page 232:

The thirty seventh council met in a sitting especially on the fourth of July, in accordance with the President's call.


eilfed ar bymtheg

eilfed ar bymtheg (feminine singular eilfed ar bymtheg, plural eilfed ar bymtheg, not comparable)

eilfed ar bymtheg (feminine singular)
eilfed ar bymtheg (plural)
eilfed ar bymtheg (mutation mutation-radical)
heilfed ar bymtheg (mutation prothesis-h)

From eilfed (“second”) + ar (“on”) + pymtheg (“fifteen”).

com

1919 July 25, “Yr Eglwys a'r Piwritan yn nghanol yr Eilfed Ganrif ar Bymtheg [The Church and the Puritan in the middle of the Seventeenth Century]”, in Y Llan, page 6:


trydydd ar bymtheg

cy-adj

trydydd ar bymtheg (feminine singular trydedd ar bymtheg, plural trydydd ar bymtheg, not comparable)

trydedd ar bymtheg (feminine singular)
trydydd ar bymtheg (plural)
trydydd ar bymtheg (mutation mutation-radical)
drydydd ar bymtheg (mutation mutation-soft)
nhrydydd ar bymtheg (mutation mutation-nasal)
thrydydd ar bymtheg (mutation mutation-aspirate)

/ˌtrədɨ̞ð ar ˈbəmθɛɡ/

/ˌtrədɪð ar ˈbəmθɛɡ/

/ˌtrɪdɪð ar ˈbəmθɛɡ/

From trydydd (“third”) + ar (“on”) + pymtheg (“fifteen”).

com

A chan y gwelwyd yn angenrheidiol i'r cyfundeb dywededig argraphu a chyhoeddi adroddiad o'u daliadau yn gyffes o'u ffydd, am y gwelwyd fod y dywediad a arferwyd hyd hyny, fod eu daliadu neu athrawiaeth yn ol erthyg'au athrawiaethol Eglwys Loegr, yn eu hystyr Galfinaidd, yn agored i amrywiol ddëongliadau, a chan hyny (wedi ystyriaeth fanwl gan y cyfundeb trwy Ddeheudir Cymru a Gogledd Cymru) cytunwyd ar adroddiad o'u daliadau yn gyffes o'u ffydd mewn cyfarfod o'r cyfundeb a gynhaliwyd yn Aberystwyth, yn sir Aberteifi, yn Neheudir Cymru, ar y trydydd dydd ar ddeg, a'r pedwerydd ar ddeg o Fawrth, un mil wyth wyth^([sic]) gant a thair ar hugain, ac yn nghymdeithasfa y cyfundeb dywededig a gynnaliwyd yn y Bala, yn sir Feirionydd, yn Ngogledd Cymru, ar yr ail ar bymtheg a'r trydydd ar bymtheg o Mehefin, un mil wyth gant a thair ar hugain, heb bleidlais wahanol yn yr un o'r ddau gyfryw gyfarfodydd, a chyhoeddwyd llyfr wedi hyny yn cynnwys hanes cyfundeb y Methodistiaid Calfinaidd Cymreig a'i sefydliad, ei reolau a'i gyffes ffydd fel yn ymddangos yn amlwg wrth gyfeirlo at y llyfr dywededig a elwir Cyffes y Ffydd, &c., y corph o Fethodistiaid Calfinaidd yn Nghymru — (Gweithred gyfreithiol, hysbysol o amcanion a threfaiadau cyfundeb y Methodistiaid Calfinaidd Cymreig, a ddyddiwyd Awst 10fed, 1826.

1864 January 27, Baner ac Amserau Cymru, page 11:


deufed ar bymtheg

cy-adj

deufed ar bymtheg (feminine singular dwyfed ar bymtheg, plural deufed ar bymtheg, not comparable)

dwyfed ar bymtheg (feminine singular)
deufed ar bymtheg (plural)
deufed ar bymtheg (mutation mutation-radical)
ddeufed ar bymtheg (mutation mutation-soft)
neufed ar bymtheg (mutation mutation-nasal)

From deufed (“second”) + ar (“on”) + pymtheg (“fifteen”).

com

Y ddeufed ar bymtheg i Hezir, y deunawfed i Aphses,

1588-1620, “1 Croncicl 24:15”, in William Morgan, transl., edited by William Parry and John Davies, Mallwyd, Y Bibl Cyssegr-Lan, sef yr Hen Destament a’r Newydd^(https://cy.wikisource.org/wiki/Beibl_(1620)/1_Croncicl), page 434; republished London, 1804:

the seventeenth to Hezir, the eighteenth to Aphses

1747, Church of England, Ffurf gweddi, i'w harfer ym mhob eglwys a chapel trwy'r rhan honno o Brydain Fawr a elwir Lloegr, Tywysogaeth Cymru, a thref Berwig ar Dwid, ar ddydd Merchur, y deufed dydd ar bymtheg o Chwefror nesaf: yr hwn yw'r diwrnod a ordeiniwyd trwy gyhoeddiad i fod yn ympryd a darostyngiad cyffredinol yng ngwydd yr Hollalluog Dduw, ac i'w gadw yn y modd mwyaf defosiynol ac arbennig, trwy ddyrchafu ein gweddiau a'n hymbiliau at y Dwywol Fawredd : er cael o honom faddeuant o'n pechodau, a throi heibio y barnedigaethau trymmion a ddarfu i ni, o achos ein hamrywjol gynhyrfiadau, o wîr gyfiawnder eu haeddu ; ac i erfyn am ei fendith a'i gymmorth ar arfau Ei Fawrhydi, ac am adferu a hir-barhâu tangnefedd, diogelwch, a llwyddiant iddo ei hunan, ac i'w deyrnasoedd ef : trwy orchymmyn pendant Ei Fawrhydi [A form of prayer, to be practiced in every church and chapel throughout that part of Great Britain called England, the Principality of Wales, and the town of Berwick-upon-Tweed, on Wednesday, the seventeenth day of February next: which is the day ordained by proclamation to be a general fast and humiliation in the presence of Almighty God, and to be kept in the most devout and special way, by raising our prayers and supplications to the Divine Majesty: to obtain from us forgiveness from our sins, and turn past the heavy judgments that have happened to us, because of our various agitations, from the true justice of deserving them; and to beg for his blessing and help on His Majesty's arms, and for the restoration and long-lasting peace, security, and success for himself, and for his kingdoms: by His Majesty's definite command], Tomas Basged:


ddeufed ar hugain

cy-adj

ddeufed ar hugain (feminine singular ddwyfed ar hugain, plural ddeufed ar hugain, not comparable, not mutable)

ddwyfed ar hugain (feminine singular)
ddeufed ar hugain (plural)
deufedd ar hugain (mutation mutation-radical)
ddeufedd ar hugain (mutation mutation-soft)
neufedd ar hugain (mutation mutation-nasal)

From ddeufed (“second”) + ar (“on”) + ugain (“twenty”).

com

Yr unfed ar hugain i Jachin, y ddeufed ar hugain i Gamul,

1588-1620, “1 Cronicl 24:17”, in William Morgan, transl., edited by William Parry and John Davies, Mallwyd, Y Bibl Cyssegr-Lan, sef yr Hen Destament a’r Newydd^(https://cy.wikisource.org/wiki/Beibl_(1620)/1_Cronicl), page 434; republished London, 1804:

the twenty-first to Jachin, the twenty-second to Gamul,


ddwyfed ar bymtheg

/ˌðʊɨ̯vɛd ar ˈbəmθɛɡ/

/ˌðʊi̯vɛd ar ˈbəmθɛɡ/

From ddwyfed (“second”) + ar (“on”) + pymtheg (“fifteen”).

Pa fodd yr ydych yn profi hyny? Trwy y ddwyfed ar bymtheg a'r ddeunawfed wahanran.

1851, Joseph Smith, translated by John Davis, Llyfr athrawiaeth a chyfammodau perthynol i Eglwys Iesu Grist o saint y dyddiau diweddaf., Merthyr Tydfil, page 41:

How do you prove that? Through the seventeenth and eighteenth divisions.


llysysydd

llysysyddion (plural)
llysysydd (mutation mutation-radical)
lysysydd (mutation mutation-soft)

From llys (“herb, plant”) + ysydd (“devourer”). Calque of Latin herbivorus.


hollysydd

cy-noun

hollysydd m (plural hollysyddion, not mutable)

hollysyddion (plural)
hollysydd (mutation mutation-radical)

From holl (“all”) + ysydd (“devourer”). Calque of Latin omnivorus.


cigysydd

cigysyddion (plural)
cigysydd (mutation mutation-radical)
gigysydd (mutation mutation-soft)
nghigysydd (mutation mutation-nasal)
chigysydd (mutation mutation-aspirate)

From cig (“meat”) + ysydd (“devourer”). Calque of Latin carnivorus.


pryfysydd

pryfysyddion (plural)
pryfysydd (mutation mutation-radical)
bryfysydd (mutation mutation-soft)
mhryfysydd (mutation mutation-nasal)
phryfysydd (mutation mutation-aspirate)

From pryf (“bug, insect”) + ysydd (“devourer”). Calque of New Latin insectivorus.


anwythiant

anwythiant (mutation mutation-radical)
hanwythiant (mutation prothesis-h)


anwythydd

anwythyddion (plural)
anwythydd (mutation mutation-radical)
hanwythydd (mutation prothesis-h)

/aˈnʊɨ̯θɨ̞ð/

From anwytho (“to induce; to induct”) + -ydd.

electrical engineering
electrical engineering


newidydd

cy-noun

newidydd m (plural newidyddion, not mutable)

From newid (“to change, to transform”) + -ydd (“-er”).

af

(physics, electrical engineering) transformer


electromagnetig

cy-adj

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

electromagnetig (feminine singular)
electromagnetig (plural)
electromagnetig (mutation mutation-radical)
helectromagnetig (mutation prothesis-h)


anwythol

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

anwythol (feminine singular)
anwythol (plural)
anwythol (mutation mutation-radical)
hanwythol (mutation prothesis-h)

(logic) inductive (relating to logical induction)

(physics) induced, inductive (arising from inductance)


anwythiad

anwythiadau (plural)
anwythiad (mutation mutation-radical)
hanwythiad (mutation prothesis-h)

Adapted from English induct, with the Welsh suffix + -iad.

(logic) induction (derivation of general principles from specific instances)

(physics) induction (generation of an electric current)


pibell

pibellau (plural)
pibelli (plural)
pibell (mutation mutation-radical)
bibell (mutation mutation-soft)
mhibell (mutation mutation-nasal)
phibell (mutation mutation-aspirate)


anwytho

cy-verb

anwytho (first-person singular present anwythaf)

anwythaf (first-person present singular)
anwythaf (first-person future indicative present singular)
anwythi (future indicative present second-person singular)
anwytha (future indicative present singular third-person)
anwythwn (first-person future indicative plural present)
anwythwch (future indicative plural present second-person)
anwythant (future indicative plural present third-person)
anwythir (future impersonal indicative present)
anwythwn (conditional first-person singular)
anwythwn (first-person imperfect indicative singular subjunctive)
anwythit (conditional second-person singular)
anwythit (imperfect indicative second-person singular subjunctive)
anwythai (conditional singular third-person)
anwythai (imperfect indicative singular subjunctive third-person)
anwythem (conditional first-person plural)
anwythem (first-person imperfect indicative plural subjunctive)
anwythech (conditional plural second-person)
anwythech (imperfect indicative plural second-person subjunctive)
anwythent (conditional plural third-person)
anwythent (imperfect indicative plural subjunctive third-person)
anwythid (conditional impersonal)
anwythid (imperfect impersonal indicative subjunctive)
anwythais (first-person preterite singular)
anwythaist (preterite second-person singular)
anwythodd (preterite singular third-person)
anwythasom (first-person plural preterite)
anwythasoch (plural preterite second-person)
anwythasant (plural preterite third-person)
anwythwyd (impersonal preterite)
anwythaswn (first-person pluperfect singular)
anwythasit (pluperfect second-person singular)
anwythasai (pluperfect singular third-person)
anwythasem (first-person pluperfect plural)
anwythasech (pluperfect plural second-person)
anwythasent (pluperfect plural third-person)
anwythasid (impersonal pluperfect)
anwythesid (impersonal pluperfect)
anwythwyf (first-person present singular subjunctive)
anwythych (present second-person singular subjunctive)
anwytho (present singular subjunctive third-person)
anwythom (first-person plural present subjunctive)
anwythoch (plural present second-person subjunctive)
anwythont (plural present subjunctive third-person)
anwyther (impersonal present subjunctive)
anwytha (imperative second-person singular)
anwythed (imperative singular third-person)
anwythwn (first-person imperative plural)
anwythwch (imperative plural second-person)
anwythent (imperative plural third-person)
anwyther (imperative impersonal)
anwytho (noun-from-verb)
anwythedig (participle)
anwythadwy (participle)
anwytha i (first-person future singular)
anwythaf i (first-person future singular)
anwythi di (future second-person singular)
anwythith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
anwythiff e (future singular third-person)
anwythwn ni (first-person future plural)
anwythwch chi (future plural second-person)
anwythan nhw (future plural third-person)
anwythwn i (conditional first-person singular)
anwythswn i (conditional first-person singular)
anwythet ti (conditional second-person singular)
anwythset ti (conditional second-person singular)
anwythai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
anwythsai fo (conditional singular third-person)
anwythen ni (conditional first-person plural)
anwythsen ni (conditional first-person plural)
anwythech chi (conditional plural second-person)
anwythsech chi (conditional plural second-person)
anwythen nhw (conditional plural third-person)
anwythsen nhw (conditional plural third-person)
anwythais i (first-person preterite singular)
anwythes i (first-person preterite singular)
anwythaist ti (preterite second-person singular)
anwythest ti (preterite second-person singular)
anwythodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
anwython ni (first-person plural preterite)
anwythoch chi (plural preterite second-person)
anwython nhw (plural preterite third-person)
anwytha (imperative second-person singular)
anwythwch (imperative plural second-person)
anwytho (mutation mutation-radical)
hanwytho (mutation prothesis-h)

(physics) to induce (generate an electric current)


ystumllyn

cy-noun

ystumllyn m (plural ystumllynnoedd or ystumllynnau)

ystumllynnoedd (plural)
ystumllynnau (plural)

ystum (“curve, meander”) + llyn (“lake”)


tiriogaeth undebol

cy-noun

tiriogaeth undebol f (plural tiriogaethau undebol)


gyriant

gyriannau (plural)
gyriant (mutation mutation-radical)
yriant (mutation mutation-soft)
ngyriant (mutation mutation-nasal)

(mechanics) drive (propulsion mechanism)


anhwyl

anhwylau (plural)
anhwyliau (plural)
anhwyl (mutation mutation-radical)
hanhwyl (mutation prothesis-h)


Baltig

cy-adj

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

Baltig (feminine singular)
Baltig (plural)


twrnai

From aphetic variant of atwrnai, from Middle English attournei.


atwrneiaeth

cy-noun

atwrneiaeth m or f (plural atwrniaethau)

atwrniaethau (plural)
atwrneiaeth (mutation mutation-radical)
hatwrneiaeth (mutation prothesis-h)


twrnai cyffredinol

twrnai cyffredinol m (plural twrneiod cyffredinol)

twrneiod cyffredinol (plural)
twrnai cyffredinol (mutation mutation-radical)
dwrnai cyffredinol (mutation mutation-soft)
nhwrnai cyffredinol (mutation mutation-nasal)
thwrnai cyffredinol (mutation mutation-aspirate)


pŵer atwrnai

pŵerau atwrnai (plural)
pŵer atwrnai (mutation mutation-radical)
bŵer atwrnai (mutation mutation-soft)
mhŵer atwrnai (mutation mutation-nasal)
phŵer atwrnai (mutation mutation-aspirate)

(law) power of attorney (legal document)


cyfyngiad cyflymder

cyfyngiad cyflymder m (plural cyfyngiadau cyflymder)

cyfyngiadau cyflymder (plural)
cyfyngiad cyflymder (mutation mutation-radical)
gyfyngiad cyflymder (mutation mutation-soft)
nghyfyngiad cyflymder (mutation mutation-nasal)
chyfyngiad cyflymder (mutation mutation-aspirate)


melltithiol

cy-adj

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

melltithiol (feminine singular)
melltithiol (plural)
mor felltithiol (equative)
mwy melltithiol (comparative)
mwyaf melltithiol (superlative)

maledictory (relating to or causing a curse)


cysglyd

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

cysglyd (feminine singular)
cysglyd (plural)
mor gysglyd (equative)
mwy cysglyd (comparative)
mwyaf cysglyd (superlative)
cysglyd (mutation mutation-radical)
gysglyd (mutation mutation-soft)
nghysglyd (mutation mutation-nasal)
chysglyd (mutation mutation-aspirate)


sirol

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

sirol (feminine singular)
sirol (plural)


bwrdais

cy-noun

bwrdais m (plural bwrdeisiaid or bwrdeisi)

bwrdeisiaid (plural)
bwrdeisi (plural)
bwrdais (mutation mutation-radical)
fwrdais (mutation mutation-soft)
mwrdais (mutation mutation-nasal)

From Middle English burgeis, from Old French borgeis.


tywyn

From tywynnu (“shine, radiate”)
#: Synonyms: disgleirdeb, eglurdeb, gloywder


cyfeiriwr

cyfeirwyr (plural)
cyfeiriwr (mutation mutation-radical)
gyfeiriwr (mutation mutation-soft)
nghyfeiriwr (mutation mutation-nasal)
chyfeiriwr (mutation mutation-aspirate)


ceudod

ceudodau (plural)
ceudod (mutation mutation-radical)
geudod (mutation mutation-soft)
ngheudod (mutation mutation-nasal)
cheudod (mutation mutation-aspirate)


genyn

genynnau (plural)
genyn (mutation mutation-radical)
ngenyn (irregular mutation mutation-nasal)

From English gene, from German Gen, from Ancient Greek γενεά (geneá, “generation, descent”)


cell waed

celloedd gwaed (plural)
cell waed (mutation mutation-radical)
gell waed (mutation mutation-soft)
nghell waed (mutation mutation-nasal)
chell waed (mutation mutation-aspirate)


côr-feistr

cy-noun

côr-feistr m (plural côr-feistri, feminine côr-feistres)

côr-feistri (plural)
côr-feistres (feminine)
côr-feistr (mutation mutation-radical)
gôr-feistr (mutation mutation-soft)
nghôr-feistr (mutation mutation-nasal)
chôr-feistr (mutation mutation-aspirate)


meistr

meistr m (plural meistri or meistriaid, feminine meistres)

meistri (plural)
meistriaid (plural)
meistres (feminine)
meistr (mutation mutation-radical)
feistr (mutation mutation-soft)

From Middle Welsh meistyr, from Old French maistre.


baglor

baglor m (plural baglorion or bagloriaid)

baglorion (plural)
bagloriaid (plural)
baglor (mutation mutation-radical)
faglor (mutation mutation-soft)
maglor (mutation mutation-nasal)

bachelor (holder of a bachelor's degree)


doethur

doethur m (plural doethurion or doethuriaid)

doethurion (plural)
doethuriaid (plural)
doethur (mutation mutation-radical)
ddoethur (mutation mutation-soft)
noethur (mutation mutation-nasal)


rhost

cy-adj

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

rhost (feminine singular)
rhost (plural)
rhost (mutation mutation-radical)
rost (mutation mutation-soft)


cymwynaswr

cy-noun

cymwynaswr m (plural cymwynaswyr, feminine cymwynaswraig)

cymwynaswyr (plural)
cymwynaswraig (feminine)
cymwynaswr (mutation mutation-radical)
gymwynaswr (mutation mutation-soft)
nghymwynaswr (mutation mutation-nasal)
chymwynaswr (mutation mutation-aspirate)


newyddiaduraeth

newyddiaduraeth f (uncountable, not mutable)


ebwch

ebwch m or f (plural ebychion or ebychiau)

ebychion (plural)
ebychiau (plural)
ebwch (mutation mutation-radical)
hebwch (mutation prothesis-h)


tŷ dol

tai dol (plural)
tŷ dol (mutation mutation-radical)
dŷ dol (mutation mutation-soft)
nhŷ dol (mutation mutation-nasal)
thŷ dol (mutation mutation-aspirate)


llechgi

llechgwn (plural)
llechgi (mutation mutation-radical)
lechgi (mutation mutation-soft)


ysbaid

ysbaid m (plural ysbeidiau, diminutive ysbeidyn)

ysbeidiau (plural)
ysbeidyn (diminutive)
ysbaid (mutation mutation-radical)
hysbaid (mutation prothesis-h)


cyfanrif

cyfanrifau (plural)
cyfanrif (mutation mutation-radical)
gyfanrif (mutation mutation-soft)
nghyfanrif (mutation mutation-nasal)
chyfanrif (mutation mutation-aspirate)

cyfan (“whole, entire”) + rhif (“number”)


llwybr halio

llwybrau halio (plural)
llwybr halio (mutation mutation-radical)
lwybr halio (mutation mutation-soft)

[ˌɬʊɨ̯br̩ ˈhaljɔ]


siâp

Maen nhw'n dysgu'r siapiau gwahanol yn yr ysgol.

They're learning the different shapes in school.


treiglad meddal

cy-noun

treiglad meddal m (plural treigladau meddal)

treigladau meddal (plural)
treiglad meddal (mutation mutation-radical)
dreiglad meddal (mutation mutation-soft)
nhreiglad meddal (mutation mutation-nasal)
threiglad meddal (mutation mutation-aspirate)

From treiglad (“mutation”) + meddal (“soft”).


treiglad llaes

treiglad llaes m (plural treigladau llaes)

treigladau llaes (plural)
treiglad llaes (mutation mutation-radical)
dreiglad llaes (mutation mutation-soft)
nhreiglad llaes (mutation mutation-nasal)
threiglad llaes (mutation mutation-aspirate)

From treiglad (“mutation”) + llaes (“flowing”).


camdreiglo

cy-verb

camdreiglo (first-person singular present camdreiglaf)

camdreiglaf (first-person present singular)
camdreiglaf (first-person future indicative present singular)
camdreigli (future indicative present second-person singular)
camdreigl (future indicative present singular third-person)
camdreigla (future indicative present singular third-person)
camdreiglwn (first-person future indicative plural present)
camdreiglwch (future indicative plural present second-person)
camdreiglant (future indicative plural present third-person)
camdreiglir (future impersonal indicative present)
camdreiglwn (conditional first-person singular)
camdreiglwn (first-person imperfect indicative singular subjunctive)
camdreiglit (conditional second-person singular)
camdreiglit (imperfect indicative second-person singular subjunctive)
camdreiglai (conditional singular third-person)
camdreiglai (imperfect indicative singular subjunctive third-person)
camdreiglem (conditional first-person plural)
camdreiglem (first-person imperfect indicative plural subjunctive)
camdreiglech (conditional plural second-person)
camdreiglech (imperfect indicative plural second-person subjunctive)
camdreiglent (conditional plural third-person)
camdreiglent (imperfect indicative plural subjunctive third-person)
camdreiglid (conditional impersonal)
camdreiglid (imperfect impersonal indicative subjunctive)
camdreiglais (first-person preterite singular)
camdreiglaist (preterite second-person singular)
camdreiglodd (preterite singular third-person)
camdreiglasom (first-person plural preterite)
camdreiglasoch (plural preterite second-person)
camdreiglasant (plural preterite third-person)
camdreiglwyd (impersonal preterite)
camdreiglaswn (first-person pluperfect singular)
camdreiglasit (pluperfect second-person singular)
camdreiglasai (pluperfect singular third-person)
camdreiglasem (first-person pluperfect plural)
camdreiglasech (pluperfect plural second-person)
camdreiglasent (pluperfect plural third-person)
camdreiglasid (impersonal pluperfect)
camdreiglesid (impersonal pluperfect)
camdreiglwyf (first-person present singular subjunctive)
camdreiglych (present second-person singular subjunctive)
camdreiglo (present singular subjunctive third-person)
camdreiglom (first-person plural present subjunctive)
camdreigloch (plural present second-person subjunctive)
camdreiglont (plural present subjunctive third-person)
camdreigler (impersonal present subjunctive)
camdreigl (imperative second-person singular)
camdreigla (imperative second-person singular)
camdreigled (imperative singular third-person)
camdreiglwn (first-person imperative plural)
camdreiglwch (imperative plural second-person)
camdreiglent (imperative plural third-person)
camdreigler (imperative impersonal)
camdreiglo (noun-from-verb)
camdreigledig (participle)
camdreigladwy (participle)
camdreigla i (first-person future singular)
camdreiglaf i (first-person future singular)
camdreigli di (future second-person singular)
camdreiglith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
camdreigliff e (future singular third-person)
camdreiglwn ni (first-person future plural)
camdreiglwch chi (future plural second-person)
camdreiglan nhw (future plural third-person)
camdreiglwn i (conditional first-person singular)
camdreiglswn i (conditional first-person singular)
camdreiglet ti (conditional second-person singular)
camdreiglset ti (conditional second-person singular)
camdreiglai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
camdreiglsai fo (conditional singular third-person)
camdreiglen ni (conditional first-person plural)
camdreiglsen ni (conditional first-person plural)
camdreiglech chi (conditional plural second-person)
camdreiglsech chi (conditional plural second-person)
camdreiglen nhw (conditional plural third-person)
camdreiglsen nhw (conditional plural third-person)
camdreiglais i (first-person preterite singular)
camdreigles i (first-person preterite singular)
camdreiglaist ti (preterite second-person singular)
camdreiglest ti (preterite second-person singular)
camdreiglodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
camdreiglon ni (first-person plural preterite)
camdreigloch chi (plural preterite second-person)
camdreiglon nhw (plural preterite third-person)
camdreigla (imperative second-person singular)
camdreiglwch (imperative plural second-person)
camdreiglo (mutation mutation-radical)
gamdreiglo (mutation mutation-soft)
nghamdreiglo (mutation mutation-nasal)
chamdreiglo (mutation mutation-aspirate)

From to cam- (“mis-”) + treiglo (“mutate”).

(linguistics) to mutate incorrectly, to "mismutate"


treiglo

treiglo (first-person singular present treiglaf)

treiglaf (first-person present singular)
treiglaf (first-person future indicative present singular)
treigli (future indicative present second-person singular)
treigl (future indicative present singular third-person)
treigla (future indicative present singular third-person)
treiglwn (first-person future indicative plural present)
treiglwch (future indicative plural present second-person)
treiglant (future indicative plural present third-person)
treiglir (future impersonal indicative present)
treiglwn (conditional first-person singular)
treiglwn (first-person imperfect indicative singular subjunctive)
treiglit (conditional second-person singular)
treiglit (imperfect indicative second-person singular subjunctive)
treiglai (conditional singular third-person)
treiglai (imperfect indicative singular subjunctive third-person)
treiglem (conditional first-person plural)
treiglem (first-person imperfect indicative plural subjunctive)
treiglech (conditional plural second-person)
treiglech (imperfect indicative plural second-person subjunctive)
treiglent (conditional plural third-person)
treiglent (imperfect indicative plural subjunctive third-person)
treiglid (conditional impersonal)
treiglid (imperfect impersonal indicative subjunctive)
treiglais (first-person preterite singular)
treiglaist (preterite second-person singular)
treiglodd (preterite singular third-person)
treiglasom (first-person plural preterite)
treiglasoch (plural preterite second-person)
treiglasant (plural preterite third-person)
treiglwyd (impersonal preterite)
treiglaswn (first-person pluperfect singular)
treiglasit (pluperfect second-person singular)
treiglasai (pluperfect singular third-person)
treiglasem (first-person pluperfect plural)
treiglasech (pluperfect plural second-person)
treiglasent (pluperfect plural third-person)
treiglasid (impersonal pluperfect)
treiglesid (impersonal pluperfect)
treiglwyf (first-person present singular subjunctive)
treiglych (present second-person singular subjunctive)
treiglo (present singular subjunctive third-person)
treiglom (first-person plural present subjunctive)
treigloch (plural present second-person subjunctive)
treiglont (plural present subjunctive third-person)
treigler (impersonal present subjunctive)
treigl (imperative second-person singular)
treigla (imperative second-person singular)
treigled (imperative singular third-person)
treiglwn (first-person imperative plural)
treiglwch (imperative plural second-person)
treiglent (imperative plural third-person)
treigler (imperative impersonal)
treiglo (noun-from-verb)
treigledig (participle)
treigladwy (participle)
treigla i (first-person future singular)
treiglaf i (first-person future singular)
treigli di (future second-person singular)
treiglith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
treigliff e (future singular third-person)
treiglwn ni (first-person future plural)
treiglwch chi (future plural second-person)
treiglan nhw (future plural third-person)
treiglwn i (conditional first-person singular)
treiglswn i (conditional first-person singular)
treiglet ti (conditional second-person singular)
treiglset ti (conditional second-person singular)
treiglai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
treiglsai fo (conditional singular third-person)
treiglen ni (conditional first-person plural)
treiglsen ni (conditional first-person plural)
treiglech chi (conditional plural second-person)
treiglsech chi (conditional plural second-person)
treiglen nhw (conditional plural third-person)
treiglsen nhw (conditional plural third-person)
treiglais i (first-person preterite singular)
treigles i (first-person preterite singular)
treiglaist ti (preterite second-person singular)
treiglest ti (preterite second-person singular)
treiglodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
treiglon ni (first-person plural preterite)
treigloch chi (plural preterite second-person)
treiglon nhw (plural preterite third-person)
treigla (imperative second-person singular)
treiglwch (imperative plural second-person)
treiglo (mutation mutation-radical)
dreiglo (mutation mutation-soft)
nhreiglo (mutation mutation-nasal)
threiglo (mutation mutation-aspirate)

Equivalent to treigl (“turn, revolution”) + -o.

der

Proto-Indo-European *dʰregʰ- (“to run, drag”)


camdreiglad

camdreigladau (plural)
camdreiglad (mutation mutation-radical)
gamdreiglad (mutation mutation-soft)
nghamdreiglad (mutation mutation-nasal)
chamdreiglad (mutation mutation-aspirate)


gwall treiglo

cy-noun

gwall treiglo m (plural gwallau treiglo)

gwallau treiglo (plural)
gwall treiglo (mutation mutation-radical)
wall treiglo (mutation mutation-soft)
ngwall treiglo (mutation mutation-nasal)

From gwall (“error”) + treiglo (“to mutate”).

(linguistics) an incorrect mutation, a mutation error


nâd

nâd m (plural nadau or nadoedd, not mutable)

From Middle Welsh nat, from Proto-Celtic *natus. Cognate with Irish nath.


newyddair

newyddair m (plural newyddeiriau, not mutable)


meddaliad

meddaliadau (plural)
meddaliad (mutation mutation-radical)
feddaliad (mutation mutation-soft)

From meddalu (“to soften, to lenite”) + -iad.


meddalu

cy-verb

meddalu (first-person singular present meddalaf)

meddalaf (first-person present singular)
meddalaf (first-person future indicative present singular)
meddeli (future indicative present second-person singular)
meddala (future indicative present singular third-person)
meddalwn (first-person future indicative plural present)
meddelwch (future indicative plural present second-person)
meddalwch (future indicative plural present second-person)
meddalant (future indicative plural present third-person)
meddelir (future impersonal indicative present)
meddalwn (conditional first-person singular)
meddalwn (first-person imperfect indicative singular subjunctive)
meddalit (conditional second-person singular)
meddalit (imperfect indicative second-person singular subjunctive)
meddalai (conditional singular third-person)
meddalai (imperfect indicative singular subjunctive third-person)
meddalem (conditional first-person plural)
meddalem (first-person imperfect indicative plural subjunctive)
meddalech (conditional plural second-person)
meddalech (imperfect indicative plural second-person subjunctive)
meddalent (conditional plural third-person)
meddalent (imperfect indicative plural subjunctive third-person)
meddelid (conditional impersonal)
meddelid (imperfect impersonal indicative subjunctive)
meddelais (first-person preterite singular)
meddelaist (preterite second-person singular)
meddalodd (preterite singular third-person)
meddalasom (first-person plural preterite)
meddalasoch (plural preterite second-person)
meddalasant (plural preterite third-person)
meddalwyd (impersonal preterite)
meddalaswn (first-person pluperfect singular)
meddalasit (pluperfect second-person singular)
meddalasai (pluperfect singular third-person)
meddalasem (first-person pluperfect plural)
meddalasech (pluperfect plural second-person)
meddalasent (pluperfect plural third-person)
meddalasid (impersonal pluperfect)
meddalesid (impersonal pluperfect)
meddalwyf (first-person present singular subjunctive)
meddelych (present second-person singular subjunctive)
meddalo (present singular subjunctive third-person)
meddalom (first-person plural present subjunctive)
meddaloch (plural present second-person subjunctive)
meddalont (plural present subjunctive third-person)
meddaler (impersonal present subjunctive)
meddaled (imperative singular third-person)
meddalwn (first-person imperative plural)
meddelwch (imperative plural second-person)
meddalwch (imperative plural second-person)
meddalent (imperative plural third-person)
meddaler (imperative impersonal)
meddalu (noun-from-verb)
meddaledig (participle)
meddaladwy (participle)
meddala i (first-person future singular)
meddalaf i (first-person future singular)
meddali di (future second-person singular)
meddalith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
meddaliff e (future singular third-person)
meddalwn ni (first-person future plural)
meddalwch chi (future plural second-person)
meddalan nhw (future plural third-person)
meddalwn i (conditional first-person singular)
meddalswn i (conditional first-person singular)
meddalet ti (conditional second-person singular)
meddalset ti (conditional second-person singular)
meddalai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
meddalsai fo (conditional singular third-person)
meddalen ni (conditional first-person plural)
meddalsen ni (conditional first-person plural)
meddalech chi (conditional plural second-person)
meddalsech chi (conditional plural second-person)
meddalen nhw (conditional plural third-person)
meddalsen nhw (conditional plural third-person)
meddalais i (first-person preterite singular)
meddales i (first-person preterite singular)
meddalaist ti (preterite second-person singular)
meddalest ti (preterite second-person singular)
meddalodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
meddalon ni (first-person plural preterite)
meddaloch chi (plural preterite second-person)
meddalon nhw (plural preterite third-person)
meddala (imperative second-person singular)
meddalwch (imperative plural second-person)
meddalu (mutation mutation-radical)
feddalu (mutation mutation-soft)


tad-cu

cy-noun

tad-cu m (plural tadau-cu or tadcuod or tad-cus)

tadau-cu (plural)
tadcuod (plural)
tad-cus (plural)
tad-cu (mutation mutation-radical)
dad-cu (mutation mutation-soft)
nhad-cu (mutation mutation-nasal)
thad-cu (mutation mutation-aspirate)

From tad (“father”) + cu (“dear, beloved”).


ffosfforws

Borrowed from Latin phosphorus, from Latin phōsphorus, from Ancient Greek φωσφόρος (phōsphóros, “the bearer of light”), from φῶς (phôs, “light”) + φέρω (phérō, “to bear, carry”).


magnesiwm

magnesiwm (mutation mutation-radical)
fagnesiwm (mutation mutation-soft)

Borrowed from English magnesium, from New Latin magnēsium, from Ancient Greek μαγνησία (magnēsía), after Μαγνησία (Magnēsía, “Magnesia”), a region in Thessaly.


fanadiwm

Borrowed from English vanadium, from Old Norse Vanadís (“Freyja”).


scandiwm

Borrowed from English scandium, fro Latin Scandia (“Scandinavia”).


titaniwm

titaniwm (mutation mutation-radical)
ditaniwm (mutation mutation-soft)
nhitaniwm (mutation mutation-nasal)
thitaniwm (mutation mutation-aspirate)

Borrowed from English titanium, from Titan, from Ancient Greek Τιτάν (Titán).


cromiwm

cromiwm (mutation mutation-radical)
gromiwm (mutation mutation-soft)
nghromiwm (mutation mutation-nasal)
chromiwm (mutation mutation-aspirate)

Borrowed from English chromium, from New Latin, from French chrome, from Ancient Greek χρῶμα (khrôma, “color”).


nicel

Borrowed from English nickel, from German Nickel.


manganîs

manganîs (mutation mutation-radical)
fanganîs (mutation mutation-soft)

From English manganese, French manganèse, from Italian manganese, by alteration from Latin magnesia (“magnesia”), from Ancient Greek μαγνησία (magnēsía), after Μαγνησία (Magnēsía, “Magnesia”).


germaniwm

germaniwm (mutation mutation-radical)
ngermaniwm (irregular mutation mutation-nasal)

Borrowed from English germanium, from Latin Germānia (“Germany”).


galiwm

galiwm (mutation mutation-radical)
ngaliwm (irregular mutation mutation-nasal)

Borrowed from English gallium, from Latin Gallia (“Gaul”). Doublet of Gâl (“Gaul”).


rwbidiwm

Borrowed from English rubidium, from New Latin, from Latin rūbidus (“red”).


seleniwm

Borrowed from English selenium, French sélénium, from Ancient Greek σελήνη (selḗnē, “moon”).


strontiwm

Borrowed from English strontium, from the name of the Scottish town Strontian, meaning it is cognate with native Welsh eistedd, Welsh sedd and Welsh ffroen, Welsh eistedd, Welsh eistedd.


opteg

opteg (mutation mutation-radical)
hopteg (mutation prothesis-h)


optegwr

optegwyr (plural)
optegwr (mutation mutation-radical)
hoptegwr (mutation prothesis-h)


atgofus

cy-adj

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

atgofus (feminine singular)
atgofus (plural)
mor atgofus (equative)
mwy atgofus (comparative)
mwyaf atgofus (superlative)
atgofus (mutation mutation-radical)
hatgofus (mutation prothesis-h)


cofair

cofeiriau (plural)
cofair (mutation mutation-radical)
gofair (mutation mutation-soft)
nghofair (mutation mutation-nasal)
chofair (mutation mutation-aspirate)


mnemonig

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

mnemonig (feminine singular)
mnemonig (plural)
mor fnemonig (equative)
mwy mnemonig (comparative)
mwyaf mnemonig (superlative)


mnemonig

mnemonigion (plural)
mnemonig (mutation mutation-radical)
fnemonig (mutation mutation-soft)


berwbwynt

berwbwyntiau (plural)
berwbwynt (mutation mutation-radical)
ferwbwynt (mutation mutation-soft)
merwbwynt (mutation mutation-nasal)

From berw (“boiling”) + pwynt (“point”).


ymdoddbwynt

ymdoddbwyntiau (plural)
ymdoddbwynt (mutation mutation-radical)
hymdoddbwynt (mutation prothesis-h)

/əmˈdɔðbʊɨ̯nt/

From ymdoddi (“to melt”) + pwynt (“point”).


rhewbwynt

rhewbwyntiau (plural)
rhewbwynt (mutation mutation-radical)
rewbwynt (mutation mutation-soft)

/ˈr̥ɛu̯bʊɨ̯nt/

From rhew (“ice, frost”) + pwynt (“point”).


pwynt triphlyg

cy-noun

pwynt triphlyg m (plural pwyntiau triphlyg)

pwyntiau triphlyg (plural)
pwynt triphlyg (mutation mutation-radical)
bwynt triphlyg (mutation mutation-soft)
mhwynt triphlyg (mutation mutation-nasal)
phwynt triphlyg (mutation mutation-aspirate)


sirconiwm

Borrowed from English zirconium, from a New Latin coinage, from zircon


ytriwm

ytriwm (mutation mutation-radical)
hytriwm (mutation prothesis-h)

Borrowed from English yttrium, from Swedish Ytterby (literally “outer village”), a town in Sweden. Doublet of erbiwm, terbiwm, and yterbiwm.


gwariant

gwariannau (plural)
gwariant (mutation mutation-radical)
wariant (mutation mutation-soft)
ngwariant (mutation mutation-nasal)


hurtyn

cy-noun

hurtyn m (plural hurtynnod or hurtynion, feminine hurten, not mutable)

hurtynnod (plural)
hurtynion (plural)
hurten (feminine)


rwtheniwm

Borrowed from English ruthenium, from Medieval Latin Rutheni, Ruteni.


niobiwm

Borrowed from English niobium, from English Niobe, from Ancient Greek Νιόβη (Nióbē, “Niobe”).


technetiwm

technetiwm (mutation mutation-radical)
dechnetiwm (mutation mutation-soft)
nhechnetiwm (mutation mutation-nasal)
thechnetiwm (mutation mutation-aspirate)

Borrowed from English technetium, from Ancient Greek τεχνητός (tekhnētós, “artificial, manmade”).


molybdenwm

molybdenwm (mutation mutation-radical)
folybdenwm (mutation mutation-soft)

Borrowed from English molybdenum, from New Latin molybdaenum, from molybdaena (“any of various substances resembling lead”), from Ancient Greek μολύβδαινα (molúbdaina, “a plummet, piece of lead”), from μόλυβδος (mólubdos, “lead; graphite”), from an Anatolian word cognate with Lydian 𐤪𐤠𐤭𐤦𐤥𐤣𐤠 (mariwda, “dark”), from Proto-Indo-European *morkʷ-iyo-, from a root *morkʷ- (“dark”).


paladiwm

paladiwm (mutation mutation-radical)
baladiwm (mutation mutation-soft)
mhaladiwm (mutation mutation-nasal)
phaladiwm (mutation mutation-aspirate)

Borrowed from English rhodium, from Pallas.


rhodiwm

rhodiwm (mutation mutation-radical)
rodiwm (mutation mutation-soft)

Borrowed from English rhodium, from New Latin rhodium, from Ancient Greek ῥόδον (rhódon, “rose”).


indiwm

indiwm (mutation mutation-radical)
hindiwm (mutation prothesis-h)

Borrowed from English indium, from New Latin term from German Indigo (“indigo”).


telwriwm

telwriwm (mutation mutation-radical)
delwriwm (mutation mutation-soft)
nhelwriwm (mutation mutation-nasal)
thelwriwm (mutation mutation-aspirate)

Borrowed from English antimony, from Latin tellūs (“earth”).


ïodin

ïodin (mutation mutation-radical)
hïodin (mutation prothesis-h)

Borrowed from English iodine, from French iode, from Ancient Greek ἰοειδής (ioeidḗs, “violet”).


lanthanwm

Borrowed from English lanthanum, from Ancient Greek λανθάνω (lanthánō, “to escape notice”)


mwynwr

mwynwyr (plural)
mwynwr (mutation mutation-radical)
fwynwr (mutation mutation-soft)


deubegwn

cy-adj

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

deubegwn (feminine singular)
deubegwn (plural)
mor ddeubegwn (equative)
mwy deubegwn (comparative)
mwyaf deubegwn (superlative)
deubegwn (mutation mutation-radical)
ddeubegwn (mutation mutation-soft)
neubegwn (mutation mutation-nasal)


pegwn

pegwnau (plural)
pegwn (mutation mutation-radical)
begwn (mutation mutation-soft)
mhegwn (mutation mutation-nasal)
phegwn (mutation mutation-aspirate)


clofan

clofannau (plural)
clofan (mutation mutation-radical)
glofan (mutation mutation-soft)
nghlofan (mutation mutation-nasal)
chlofan (mutation mutation-aspirate)


allglofan

allglofannau (plural)
allglofan (mutation mutation-radical)
hallglofan (mutation prothesis-h)


agerdd

agerddau (plural)
agerdd (mutation mutation-radical)
hagerdd (mutation prothesis-h)


atgenhedlu

cy-verb

atgenhedlu (first-person singular present cenhedlaf)

cenhedlaf (first-person present singular)
atgenhedlaf (first-person future indicative present singular)
atgenhedli (future indicative present second-person singular)
atgenhedla (future indicative present singular third-person)
atgenhedlwn (first-person future indicative plural present)
atgenhedlwch (future indicative plural present second-person)
atgenhedlant (future indicative plural present third-person)
atgenhedlir (future impersonal indicative present)
atgenhedlwn (conditional first-person singular)
atgenhedlwn (first-person imperfect indicative singular subjunctive)
atgenhedlit (conditional second-person singular)
atgenhedlit (imperfect indicative second-person singular subjunctive)
atgenhedlai (conditional singular third-person)
atgenhedlai (imperfect indicative singular subjunctive third-person)
atgenhedlem (conditional first-person plural)
atgenhedlem (first-person imperfect indicative plural subjunctive)
atgenhedlech (conditional plural second-person)
atgenhedlech (imperfect indicative plural second-person subjunctive)
atgenhedlent (conditional plural third-person)
atgenhedlent (imperfect indicative plural subjunctive third-person)
atgenhedlid (conditional impersonal)
atgenhedlid (imperfect impersonal indicative subjunctive)
atgenhedlais (first-person preterite singular)
atgenhedlaist (preterite second-person singular)
atgenhedlodd (preterite singular third-person)
atgenhedlasom (first-person plural preterite)
atgenhedlasoch (plural preterite second-person)
atgenhedlasant (plural preterite third-person)
atgenhedlwyd (impersonal preterite)
atgenhedlaswn (first-person pluperfect singular)
atgenhedlasit (pluperfect second-person singular)
atgenhedlasai (pluperfect singular third-person)
atgenhedlasem (first-person pluperfect plural)
atgenhedlasech (pluperfect plural second-person)
atgenhedlasent (pluperfect plural third-person)
atgenhedlasid (impersonal pluperfect)
atgenhedlesid (impersonal pluperfect)
atgenhedlwyf (first-person present singular subjunctive)
atgenhedlych (present second-person singular subjunctive)
atgenhedlo (present singular subjunctive third-person)
atgenhedlom (first-person plural present subjunctive)
atgenhedloch (plural present second-person subjunctive)
atgenhedlont (plural present subjunctive third-person)
atgenhedler (impersonal present subjunctive)
atgenhedla (imperative second-person singular)
atgenhedled (imperative singular third-person)
atgenhedlwn (first-person imperative plural)
atgenhedlwch (imperative plural second-person)
atgenhedlent (imperative plural third-person)
atgenhedler (imperative impersonal)
atgenhedlu (noun-from-verb)
atgenhedledig (participle)
atgenhedladwy (participle)
atgenhedla i (first-person future singular)
atgenhedlaf i (first-person future singular)
atgenhedli di (future second-person singular)
atgenhedlith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
atgenhedliff e (future singular third-person)
atgenhedlwn ni (first-person future plural)
atgenhedlwch chi (future plural second-person)
atgenhedlan nhw (future plural third-person)
atgenhedlwn i (conditional first-person singular)
atgenhedlswn i (conditional first-person singular)
atgenhedlet ti (conditional second-person singular)
atgenhedlset ti (conditional second-person singular)
atgenhedlai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
atgenhedlsai fo (conditional singular third-person)
atgenhedlen ni (conditional first-person plural)
atgenhedlsen ni (conditional first-person plural)
atgenhedlech chi (conditional plural second-person)
atgenhedlsech chi (conditional plural second-person)
atgenhedlen nhw (conditional plural third-person)
atgenhedlsen nhw (conditional plural third-person)
atgenhedlais i (first-person preterite singular)
atgenhedles i (first-person preterite singular)
atgenhedlaist ti (preterite second-person singular)
atgenhedlest ti (preterite second-person singular)
atgenhedlodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
atgenhedlon ni (first-person plural preterite)
atgenhedloch chi (plural preterite second-person)
atgenhedlon nhw (plural preterite third-person)
atgenhedla (imperative second-person singular)
atgenhedlwch (imperative plural second-person)
atgenhedlu (mutation mutation-radical)
hatgenhedlu (mutation prothesis-h)

(transitive, intransitive, biology) to reproduce


agerfad

agerfadau (plural)
agerfad (mutation mutation-radical)
hagerfad (mutation prothesis-h)


silwair

cy-noun

silwair m (plural silweiriau, not mutable)


porthiant

porthiannau (plural)
porthiant (mutation mutation-radical)
borthiant (mutation mutation-soft)
mhorthiant (mutation mutation-nasal)
phorthiant (mutation mutation-aspirate)


optegydd

optegwyr (plural)
optegydd (mutation mutation-radical)
hoptegydd (mutation prothesis-h)


tisian

cy-verb

tisian (first-person singular present tisiaf)

tisiaf (first-person present singular)
tisiaf (first-person future indicative present singular)
tisi (future indicative present second-person singular)
tisia (future indicative present singular third-person)
tisiwn (first-person future indicative plural present)
tisiwch (future indicative plural present second-person)
tisiant (future indicative plural present third-person)
tisir (future impersonal indicative present)
tisiwn (conditional first-person singular)
tisiwn (first-person imperfect indicative singular)
tisit (conditional second-person singular)
tisit (imperfect indicative second-person singular)
tisiai (conditional singular third-person)
tisiai (imperfect indicative singular third-person)
tisiem (conditional first-person plural)
tisiem (first-person imperfect indicative plural)
tisiech (conditional plural second-person)
tisiech (imperfect indicative plural second-person)
tisient (conditional plural third-person)
tisient (imperfect indicative plural third-person)
tisid (conditional impersonal)
tisid (imperfect impersonal indicative)
tisiais (first-person preterite singular)
tisiaist (preterite second-person singular)
tisiodd (preterite singular third-person)
tisiasom (first-person plural preterite)
tisiasoch (plural preterite second-person)
tisiasant (plural preterite third-person)
tisiwyd (impersonal preterite)
tisiaswn (first-person pluperfect singular)
tisiasit (pluperfect second-person singular)
tisiasai (pluperfect singular third-person)
tisiasem (first-person pluperfect plural)
tisiasech (pluperfect plural second-person)
tisiasent (pluperfect plural third-person)
tisiasid (impersonal pluperfect)
tisiesid (impersonal pluperfect)
tisiwyf (first-person present singular subjunctive)
tisiech (present second-person singular subjunctive)
tisio (present singular subjunctive third-person)
tisiom (first-person plural present subjunctive)
tisioch (plural present second-person subjunctive)
tisiont (plural present subjunctive third-person)
tisier (impersonal present subjunctive)
tisia (imperative second-person singular)
tisied (imperative singular third-person)
tisiwn (first-person imperative plural)
tisiwch (imperative plural second-person)
tisient (imperative plural third-person)
tisier (imperative impersonal)
tisian (noun-from-verb)
tisiedig (participle)
tisedig (participle)
tisiadwy (participle)
tisadwy (participle)
tisia i (first-person future singular)
tisiaf i (first-person future singular)
tisi di (future second-person singular)
tisith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
tisiff e (future singular third-person)
tisiwn ni (first-person future plural)
tisiwch chi (future plural second-person)
tisian nhw (future plural third-person)
tisiwn i (conditional first-person singular)
tisiet ti (conditional second-person singular)
tisiai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
tisien ni (conditional first-person plural)
tisiech chi (conditional plural second-person)
tisien nhw (conditional plural third-person)
tisiais i (first-person preterite singular)
tisies i (first-person preterite singular)
tisiaist ti (preterite second-person singular)
tisiest ti (preterite second-person singular)
tisiodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
tision ni (first-person plural preterite)
tisioch chi (plural preterite second-person)
tision nhw (plural preterite third-person)
tisia (imperative second-person singular)
tisiwch (imperative plural second-person)


silweirio

silweirio (first-person singular present silweiriaf, not mutable)

silweiriaf (first-person present singular)
silweiriaf (first-person future indicative present singular)
silweiri (future indicative present second-person singular)
silweiria (future indicative present singular third-person)
silweiriwn (first-person future indicative plural present)
silweiriwch (future indicative plural present second-person)
silweiriant (future indicative plural present third-person)
silweirir (future impersonal indicative present)
silweiriwn (conditional first-person singular)
silweiriwn (first-person imperfect indicative singular)
silweirit (conditional second-person singular)
silweirit (imperfect indicative second-person singular)
silweiriai (conditional singular third-person)
silweiriai (imperfect indicative singular third-person)
silweiriem (conditional first-person plural)
silweiriem (first-person imperfect indicative plural)
silweiriech (conditional plural second-person)
silweiriech (imperfect indicative plural second-person)
silweirient (conditional plural third-person)
silweirient (imperfect indicative plural third-person)
silweirid (conditional impersonal)
silweirid (imperfect impersonal indicative)
silweiriais (first-person preterite singular)
silweiriaist (preterite second-person singular)
silweiriodd (preterite singular third-person)
silweiriasom (first-person plural preterite)
silweiriasoch (plural preterite second-person)
silweiriasant (plural preterite third-person)
silweiriwyd (impersonal preterite)
silweiriaswn (first-person pluperfect singular)
silweiriasit (pluperfect second-person singular)
silweiriasai (pluperfect singular third-person)
silweiriasem (first-person pluperfect plural)
silweiriasech (pluperfect plural second-person)
silweiriasent (pluperfect plural third-person)
silweiriasid (impersonal pluperfect)
silweiriesid (impersonal pluperfect)
silweiriwyf (first-person present singular subjunctive)
silweiriech (present second-person singular subjunctive)
silweirio (present singular subjunctive third-person)
silweiriom (first-person plural present subjunctive)
silweirioch (plural present second-person subjunctive)
silweiriont (plural present subjunctive third-person)
silweirier (impersonal present subjunctive)
silweiria (imperative second-person singular)
silweiried (imperative singular third-person)
silweiriwn (first-person imperative plural)
silweiriwch (imperative plural second-person)
silweirient (imperative plural third-person)
silweirier (imperative impersonal)
silweirio (noun-from-verb)
silweiriedig (participle)
silweiriadwy (participle)
silweiria i (first-person future singular)
silweiriaf i (first-person future singular)
silweiri di (future second-person singular)
silweirith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
silweiriff e (future singular third-person)
silweiriwn ni (first-person future plural)
silweiriwch chi (future plural second-person)
silweirian nhw (future plural third-person)
silweiriwn i (conditional first-person singular)
silweirswn i (conditional first-person singular)
silweiriet ti (conditional second-person singular)
silweirset ti (conditional second-person singular)
silweiriai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
silweirsai fo (conditional singular third-person)
silweirien ni (conditional first-person plural)
silweirsen ni (conditional first-person plural)
silweiriech chi (conditional plural second-person)
silweirsech chi (conditional plural second-person)
silweirien nhw (conditional plural third-person)
silweirsen nhw (conditional plural third-person)
silweiriais i (first-person preterite singular)
silweiries i (first-person preterite singular)
silweiriaist ti (preterite second-person singular)
silweiriest ti (preterite second-person singular)
silweiriodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
silweirion ni (first-person plural preterite)
silweirioch chi (plural preterite second-person)
silweirion nhw (plural preterite third-person)
silweiria (imperative second-person singular)
silweiriwch (imperative plural second-person)


cerfwedd

cerfweddau (plural)
cerfwedd (mutation mutation-radical)
gerfwedd (mutation mutation-soft)
ngherfwedd (mutation mutation-nasal)
cherfwedd (mutation mutation-aspirate)


cerfiad

cerfiadau (plural)
cerfiad (mutation mutation-radical)
gerfiad (mutation mutation-soft)
ngherfiad (mutation mutation-nasal)
cherfiad (mutation mutation-aspirate)


llythyrdy

llythyrtai (plural)
llythyrdy (mutation mutation-radical)
lythyrdy (mutation mutation-soft)


swyddfa bost

cy-noun

swyddfa bost f (plural swyddfeydd post, not mutable)


Wrdw

Borrowed from English Urdu, itself from Urdu اُرْدُو (urdū).


megaffon

megaffonau (plural)
megaffon (mutation mutation-radical)
fegaffon (mutation mutation-soft)

Partial calque of English megaphone. Equivalent to mega- + ffôn.


gwm cnoi

gwmau cnoi (plural)
gwm cnoi (mutation mutation-radical)
wm cnoi (mutation mutation-soft)
ngwm cnoi (mutation mutation-nasal)


blewiach

blewiach (mutation mutation-radical)
flewiach (mutation mutation-soft)
mlewiach (mutation mutation-nasal)


glasfyfyriwr

glasfyfyriwr m (plural glasfyfyrwyr, feminine glasfyfyrwraig)

glasfyfyrwyr (plural)
glasfyfyrwraig (feminine)
glasfyfyriwr (mutation mutation-radical)
lasfyfyriwr (mutation mutation-soft)
nglasfyfyriwr (mutation mutation-nasal)

From glas (“green”) + myfyriwr (“student”).


llyngesydd

llyngesyddion (plural)
llyngesydd (mutation mutation-radical)
lyngesydd (mutation mutation-soft)

From llynges (“ships, fleet”) + -ydd (“-er: forming agent nouns”)


llynges

llyngesau (plural)
llynges (mutation mutation-radical)
lynges (mutation mutation-soft)

From Middle Welsh llyghes, from Proto-Celtic *longestā, a derivative of *longā (whence also llong). Cognate to Irish loingeas.
Synchronically analyzable as llong (“ship”) + -es (“collective suffix”).


gwasgod

Borrowed from English waistcoat, assimilated to etymology 2 as a waistcoat can be considered a type of covering or protection.


gwasgod

gwasgodau (plural)
gwasgod (mutation mutation-radical)
wasgod (mutation mutation-soft)
ngwasgod (mutation mutation-nasal)

From Middle Welsh gwasgawd, gwasgaut, from Proto-Brythonic *gwoskọd, from Proto-Celtic *uɸo-skātu. Cognate with Irish foscadh (“shelter; shade”). By surface analysis, go-, gwo-, gwa- (“under”) + ysgod (“shade”).


brêc

breciau (plural)
brêcs (plural)
brêc (mutation mutation-radical)
frêc (mutation mutation-soft)
mrêc (mutation mutation-nasal)


hypnotydd

cy-noun

hypnotydd m (plural hypnotyddion, not mutable)


esgair

esgair m (plural esgeiriau or esgeiriedd)

Compare Irish eiscir, from Old Irish escir (“ridge”).


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)


gwyntyll

/ˈɡwɨ̞ntɨ̞ɬ/

Derivative of gwynt (“wind”) with the same suffix found in ffrewyll (“whip”); compare Cornish gwynsell (“fan; winnowing fan”), Breton gwentell (“winnowing fan”).


gwyntio

cy-verb

gwyntio (first-person singular present gwyntioaf)

gwyntioaf (first-person present singular)
gwyntiaf (first-person future indicative present singular)
gwynti (future indicative present second-person singular)
gwyntia (future indicative present singular third-person)
gwyntiwn (first-person future indicative plural present)
gwyntiwch (future indicative plural present second-person)
gwyntiant (future indicative plural present third-person)
gwyntir (future impersonal indicative present)
gwyntiwn (conditional first-person singular)
gwyntiwn (first-person imperfect indicative singular)
gwyntit (conditional second-person singular)
gwyntit (imperfect indicative second-person singular)
gwyntiai (conditional singular third-person)
gwyntiai (imperfect indicative singular third-person)
gwyntiem (conditional first-person plural)
gwyntiem (first-person imperfect indicative plural)
gwyntiech (conditional plural second-person)
gwyntiech (imperfect indicative plural second-person)
gwyntient (conditional plural third-person)
gwyntient (imperfect indicative plural third-person)
gwyntid (conditional impersonal)
gwyntid (imperfect impersonal indicative)
gwyntiais (first-person preterite singular)
gwyntiaist (preterite second-person singular)
gwyntiodd (preterite singular third-person)
gwyntiasom (first-person plural preterite)
gwyntiasoch (plural preterite second-person)
gwyntiasant (plural preterite third-person)
gwyntiwyd (impersonal preterite)
gwyntiaswn (first-person pluperfect singular)
gwyntiasit (pluperfect second-person singular)
gwyntiasai (pluperfect singular third-person)
gwyntiasem (first-person pluperfect plural)
gwyntiasech (pluperfect plural second-person)
gwyntiasent (pluperfect plural third-person)
gwyntiasid (impersonal pluperfect)
gwyntiesid (impersonal pluperfect)
gwyntiwyf (first-person present singular subjunctive)
gwyntiech (present second-person singular subjunctive)
gwyntio (present singular subjunctive third-person)
gwyntiom (first-person plural present subjunctive)
gwyntioch (plural present second-person subjunctive)
gwyntiont (plural present subjunctive third-person)
gwyntier (impersonal present subjunctive)
gwyntia (imperative second-person singular)
gwyntied (imperative singular third-person)
gwyntiwn (first-person imperative plural)
gwyntiwch (imperative plural second-person)
gwyntient (imperative plural third-person)
gwyntier (imperative impersonal)
gwyntio (noun-from-verb)
gwyntiedig (participle)
gwyntiadwy (participle)
gwyntia i (first-person future singular)
gwyntiaf i (first-person future singular)
gwynti di (future second-person singular)
gwyntith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
gwyntiff e (future singular third-person)
gwyntiwn ni (first-person future plural)
gwyntiwch chi (future plural second-person)
gwyntian nhw (future plural third-person)
gwyntiwn i (conditional first-person singular)
gwyntswn i (conditional first-person singular)
gwyntiet ti (conditional second-person singular)
gwyntset ti (conditional second-person singular)
gwyntiai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
gwyntsai fo (conditional singular third-person)
gwyntien ni (conditional first-person plural)
gwyntsen ni (conditional first-person plural)
gwyntiech chi (conditional plural second-person)
gwyntsech chi (conditional plural second-person)
gwyntien nhw (conditional plural third-person)
gwyntsen nhw (conditional plural third-person)
gwyntiais i (first-person preterite singular)
gwynties i (first-person preterite singular)
gwyntiaist ti (preterite second-person singular)
gwyntiest ti (preterite second-person singular)
gwyntiodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
gwyntion ni (first-person plural preterite)
gwyntioch chi (plural preterite second-person)
gwyntion nhw (plural preterite third-person)
gwyntia (imperative second-person singular)
gwyntiwch (imperative plural second-person)


hŵr

cy-noun

hŵr f (plural hwrs, diminutive hwren, not mutable)


mewnfudiad

mewnfudiad (mutation mutation-radical)
fewnfudiad (mutation mutation-soft)


bryoffyt

bryoffytau (plural)
bryoffyt (mutation mutation-radical)
fryoffyt (mutation mutation-soft)
mryoffyt (mutation mutation-nasal)

Borrowed from English bryophyte, from Bryophyta.


cydleoli

cy-verb

cydleoli (first-person singular present cydleolaf)

cydleolaf (first-person present singular)
cydleolaf (first-person future indicative present singular)
cydleoli (future indicative present second-person singular)
cydleola (future indicative present singular third-person)
cydleolwn (first-person future indicative plural present)
cydleolwch (future indicative plural present second-person)
cydleolant (future indicative plural present third-person)
cydleolir (future impersonal indicative present)
cydleolwn (conditional first-person singular)
cydleolwn (first-person imperfect indicative singular subjunctive)
cydleolit (conditional second-person singular)
cydleolit (imperfect indicative second-person singular subjunctive)
cydleolai (conditional singular third-person)
cydleolai (imperfect indicative singular subjunctive third-person)
cydleolem (conditional first-person plural)
cydleolem (first-person imperfect indicative plural subjunctive)
cydleolech (conditional plural second-person)
cydleolech (imperfect indicative plural second-person subjunctive)
cydleolent (conditional plural third-person)
cydleolent (imperfect indicative plural subjunctive third-person)
cydleolid (conditional impersonal)
cydleolid (imperfect impersonal indicative subjunctive)
cydleolais (first-person preterite singular)
cydleolaist (preterite second-person singular)
cydleolodd (preterite singular third-person)
cydleolasom (first-person plural preterite)
cydleolasoch (plural preterite second-person)
cydleolasant (plural preterite third-person)
cydleolwyd (impersonal preterite)
cydleolaswn (first-person pluperfect singular)
cydleolasit (pluperfect second-person singular)
cydleolasai (pluperfect singular third-person)
cydleolasem (first-person pluperfect plural)
cydleolasech (pluperfect plural second-person)
cydleolasent (pluperfect plural third-person)
cydleolasid (impersonal pluperfect)
cydleolesid (impersonal pluperfect)
cydleolwyf (first-person present singular subjunctive)
cydleolych (present second-person singular subjunctive)
cydleolo (present singular subjunctive third-person)
cydleolom (first-person plural present subjunctive)
cydleoloch (plural present second-person subjunctive)
cydleolont (plural present subjunctive third-person)
cydleoler (impersonal present subjunctive)
cydleola (imperative second-person singular)
cydleoled (imperative singular third-person)
cydleolwn (first-person imperative plural)
cydleolwch (imperative plural second-person)
cydleolent (imperative plural third-person)
cydleoler (imperative impersonal)
cydleoli (noun-from-verb)
cydleoledig (participle)
cydleoladwy (participle)
cydleola i (first-person future singular)
cydleolaf i (first-person future singular)
cydleoli di (future second-person singular)
cydleolith o (future singular third-person)
e (future singular third-person)
hi (future singular third-person)
cydleoliff e (future singular third-person)
cydleolwn ni (first-person future plural)
cydleolwch chi (future plural second-person)
cydleolan nhw (future plural third-person)
cydleolwn i (conditional first-person singular)
cydleolswn i (conditional first-person singular)
cydleolet ti (conditional second-person singular)
cydleolset ti (conditional second-person singular)
cydleolai fo (conditional singular third-person)
fe (conditional singular third-person)
hi (conditional singular third-person)
cydleolsai fo (conditional singular third-person)
cydleolen ni (conditional first-person plural)
cydleolsen ni (conditional first-person plural)
cydleolech chi (conditional plural second-person)
cydleolsech chi (conditional plural second-person)
cydleolen nhw (conditional plural third-person)
cydleolsen nhw (conditional plural third-person)
cydleolais i (first-person preterite singular)
cydleoles i (first-person preterite singular)
cydleolaist ti (preterite second-person singular)
cydleolest ti (preterite second-person singular)
cydleolodd o (preterite singular third-person)
e (preterite singular third-person)
hi (preterite singular third-person)
cydleolon ni (first-person plural preterite)
cydleoloch chi (plural preterite second-person)
cydleolon nhw (plural preterite third-person)
cydleola (imperative second-person singular)
cydleolwch (imperative plural second-person)
cydleoli (mutation mutation-radical)
gydleoli (mutation mutation-soft)
nghydleoli (mutation mutation-nasal)
chydleoli (mutation mutation-aspirate)

(linguistics, translation studies) to collocate


gwladychiaeth

gwladychiaeth (mutation mutation-radical)
wladychiaeth (mutation mutation-soft)
ngwladychiaeth (mutation mutation-nasal)


maleiswedd

maleiswedd (mutation mutation-radical)
faleiswedd (mutation mutation-soft)

malais (“malevolence, malice”) + gwedd (“form”), analogous to caledwedd (“hardware”) and meddalwedd (“software”)


meddalwedd wystlo

meddalwedd wystlo (mutation mutation-radical)
feddalwedd wystlo (mutation mutation-soft)

[mɛˌðalˠwɛð ˈwɨ̞stlˠɔ]

[mɛˌðalˠwɛð ˈwɪstlˠɔ]

meddalwedd (“software”) + gwystlo (“to pledge, to deposit as security for money”) (cf. gwystl (“hostage”))


cadarnwedd

cadarnwedd (mutation mutation-radical)
gadarnwedd (mutation mutation-soft)
nghadarnwedd (mutation mutation-nasal)
chadarnwedd (mutation mutation-aspirate)

cadarn (“strong, firm”) + gwedd (“form”), analogous to caledwedd (“hardware”) and meddalwedd (“software”)


meddalwedd hysbysebu

meddalwedd hysbysebu (mutation mutation-radical)
feddalwedd hysbysebu (mutation mutation-soft)

/mɛˌðalwɛð ˌhəsbəˈsɛbɨ̞/

[mɛˌðalˠwɛð ˌhəspəˈsɛbɨ̞]

meddalwedd (“software”) + hysbysebu (“to advertise”)


ysbïwedd

ysbïwedd (mutation mutation-radical)
hysbïwedd (mutation prothesis-h)

ysbïo (“to spy”) + gwedd (“form”), analogous to caledwedd (“hardware”) and meddalwedd (“software”)


rhewfryn

rhewfryniau (plural)
rhewfryn (mutation mutation-radical)
rewfryn (mutation mutation-soft)


eisbyrg

eisbyrgs (plural)
eisbyrg (mutation mutation-radical)
heisbyrg (mutation prothesis-h)


ceidwadaeth

ceidwadaeth (mutation mutation-radical)
geidwadaeth (mutation mutation-soft)
ngheidwadaeth (mutation mutation-nasal)
cheidwadaeth (mutation mutation-aspirate)


anarchiaeth

anarchiaeth (mutation mutation-radical)
hanarchiaeth (mutation prothesis-h)


traffordd

traffyrdd (plural)
traffordd (mutation mutation-radical)
draffordd (mutation mutation-soft)
nhraffordd (mutation mutation-nasal)
thraffordd (mutation mutation-aspirate)


masnachfraint

cy-noun

masnachfraint f (plural masnachfreintiau)

masnachfreintiau (plural)
masnachfraint (mutation mutation-radical)
fasnachfraint (mutation mutation-soft)

From masnach (“trade, commerce”) + braint (“privilege, right”).


goror

gororau (plural)
gororion (plural)
goror (mutation mutation-radical)
oror (mutation mutation-soft)
ngoror (mutation mutation-nasal)


cywilydd

cy-noun

cywilydd m (plural cywilyddion or ciwyliddau)

cywilyddion (plural)
ciwyliddau (plural)


cydwybod

cydwybodau (plural)
cydwybod (mutation mutation-radical)
gydwybod (mutation mutation-soft)
nghydwybod (mutation mutation-nasal)
chydwybod (mutation mutation-aspirate)

/kəˈdʊɨ̯bɔd/

From cyd- + gwybod, a calque of Latin cōnscientia.


llwydwyn

cy-adj

llwydwyn (feminine singular llwydwyn, plural llwydwynion, equative llwydwyned, comparative llwydwynach, superlative llwydwynaf)

llwydwyn (feminine singular)
llwydwynion (plural)
llwydwyned (equative)
llwydwynach (comparative)
llwydwynaf (superlative)
llwydwyn (mutation mutation-radical)
lwydwyn (mutation mutation-soft)

/ˈɬʊɨ̯dwɨ̞n/


gwinau

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

gwinau (feminine singular)
gwinau (plural)
gwinau (mutation mutation-radical)
winau (mutation mutation-soft)
ngwinau (mutation mutation-nasal)


ffeiarman

cy-noun

ffeiarman m (plural ffeiarmen or ffeiarmyn, not mutable)


Iôr

Proprialisation of iôr (“lord”). See also Iôn (“Lord”).

Iesu yw'r Iôr.


Iôn

Proprialisation of iôn (“lord”). See also Iôr (“Lord”).


un drwg

/ˌɨːn ˈdruːɡ/

/ər ˌɨːn ˈdruːɡ/


Nêr

PIE word
 *h₂nḗr
Proprialisation of nêr (“lord”), from Proto-Celtic *neros (“hero”), from Proto-Indo-European *h₂nḗr (“man; power, force”). Doublet of nerth (“strength, power”).


ïon

ïonau (plural)
ïon (mutation mutation-radical)
hïon (mutation prothesis-h)

From English ion, from Ancient Greek ἰόν (ión, “going”).


asid amino

(organic chemistry, biochemistry) amino acid


rhewlif

rhewlifoedd (plural)
rhewlif (mutation mutation-radical)
rewlif (mutation mutation-soft)


crasddadrwydd

crasddadrwydd (mutation mutation-radical)
grasddadrwydd (mutation mutation-soft)
nghrasddadrwydd (mutation mutation-nasal)
chrasddadrwydd (mutation mutation-aspirate)

An 18th century attempt to create a native word for coffee from cras (“dry, toasted”) + dadrwydd, the latter element of uncertain origin.

Ond gresyn fod Haidd, Gwinwydd, Llewyg y Blaidd, Ffwgws, Ystrew … Crâsddadrwydd … yn amharu’r hŵyl, ac yn dwyn Arian yr hên Frutaniaid! lle’r oeddynt gynt yn byw yn hŷn, yn iachach, ac yn gryfarch [sic], ar laeth, ymenyn, a Mêl, na’i hôll Sothach afiach afreidiol alltudaidd pellennig.

1759, David Jones, Blodeu-gerdd Cymry: sef casgliad o caniadau Cymreig, gan amryw awdwyr o'r oes ddiwaethaf, Stafford Prys:

It is a pity that Barley, Vines, Hops, Tobacco, Snuff … Coffee … do impair the temper, and steal the Money of the ancient Britons! where they heretofore lived older, healthier and stronger, on milk, butter, and Honey, rather than all [their] foreign needless unhealthy Dross from afar.


bwrdd coffi

byrddau coffi (plural)
bwrdd coffi (mutation mutation-radical)
fwrdd coffi (mutation mutation-soft)
mwrdd coffi (mutation mutation-nasal)

/ˌbʊrð ˈkɔfɪ/

From bwrdd (“table”) + coffi (“coffee”).


gwlithbwynt

gwlithbwyntiau (plural)
gwlithbwynt (mutation mutation-radical)
wlithbwynt (mutation mutation-soft)
ngwlithbwynt (mutation mutation-nasal)


melfed

melfedau (plural)
melfed (mutation mutation-radical)
felfed (mutation mutation-soft)

From English velvet, backformed with /m/ because /v/ is its soft mutation (see similar examples: mantais (“advantage”), melfaréd (“velveret”), mursen (“coquette; damselfly”), menter (“venture”)).


gwäell

gwëyll (plural)
gweill (plural)
gwäell (mutation mutation-radical)
wäell (mutation mutation-soft)
ngwäell (mutation mutation-nasal)


lorri

cy-noun

lorri f (plural lorïau or lorris, not mutable)

Rowlidd lorri Lowri lawr y lôn.
Lowri’s lorry rolled down the lane.


cowboi

cowbois (plural)
cowboi (mutation mutation-radical)
gowboi (mutation mutation-soft)
nghowboi (mutation mutation-nasal)
chowboi (mutation mutation-aspirate)


trawst

trawstiau (plural)
trawst (mutation mutation-radical)
drawst (mutation mutation-soft)
nhrawst (mutation mutation-nasal)
thrawst (mutation mutation-aspirate)

(rail transport) railway sleeper, railroad tie


meddygaeth

meddygaethau (plural)
meddygaeth (mutation mutation-radical)
feddygaeth (mutation mutation-soft)

/mɛˈðəɡaɨ̯θ/

/mɛˈðəɡai̯θ/


gwefr

gwefrau (plural)
gwefr (mutation mutation-radical)
wefr (mutation mutation-soft)
ngwefr (mutation mutation-nasal)

From Middle Welsh gwefr (“amber”), from Proto-Celtic *u̯ebru-.