neutron

head

neutron m (collective, plural neutronennoù, singulative neutronenn)

neutronennoù (plural)
neutronenn (singulative)


proton

proton m (collective, plural protonennoù, singulative protonenn)

protonennoù (plural)
protonenn (singulative)


bier

From Dutch bier, from Middle Dutch bier, from Old Dutch bier, from Proto-West Germanic *beuʀ (“beer”).


chug

From Proto-Celtic *sūgos; compare Scottish Gaelic sùgh and Welsh sudd.


gluon

gluon m (collective, plural gluonennoù, singulative gluonenn)

gluonennoù (plural)
gluonenn (singulative)


kaliom

kaliom (unmutated)
galiom (mutation-soft)
c'haliom (mutation-aspirate)


glas

Inherited from Middle Breton glas, Proto-Brythonic *glas, from Proto-Celtic *glastos.


Sul

From Proto-Brythonic [Term?], borrowed through Vulgar Latin from Latin sōl (“the sun”). Compare Welsh Sul, Cornish Sul.


gwenn

From Middle Breton guinn, from Old Breton uuin, Proto-Brythonic *gwɨnn, from Proto-Celtic *windos.


staen

Borrowed from Old French estain, or inherited from Proto-Brythonic *staɨn.


Gwener

Gwener (unmutated)
Wener (mutation-soft)
Kwener (mutation-hard)

From Proto-Brythonic *gwener, from Latin Venus. Compare Welsh Gwener, Cornish Gwener.


died

From Proto-Celtic *dī-āti-s, from Proto-Indo-European *dʰeh₁(y)- (“to suck”); compare Old Irish deug and Welsh diod.


Persefone

Persefone (unmutated)
Bersefone (mutation-soft)
Fersefone (mutation-aspirate)

Borrowed from Ancient Greek Περσεφόνη (Persephónē).


Perzefona

Perzefona (unmutated)
Berzefona (mutation-soft)
Ferzefona (mutation-aspirate)


Hypnos

Borrowed from Ancient Greek Ὕπνος (Húpnos).


goañv

goañvoù (plural)
goañv (singular unmutated)
c'hoañv (mutation-soft singular)
koañv (mutation-hard singular)
goañvoù (plural unmutated)
c'hoañvoù (mutation-soft plural)
koañvoù (mutation-hard plural)

From Middle Breton gouaff, from Old Breton guoiam, guiam, from Proto-Celtic *gyemos (compare Welsh gaeaf, Cornish gwav, Old Irish gaim), from Proto-Indo-European *ǵʰyem- (compare Latin hiems).


laezh

From Middle Breton laez, from Old Breton laed, from Proto-Brythonic *llaɨθ, borrowed from Latin lac. Cognates include Welsh llaeth and Cornish leth.

Ur banne laezh.


gwin

gwinoù (plural)
gwin (singular unmutated)
win (mutation-soft singular)
kwin (mutation-hard singular)
gwinoù (plural unmutated)
winoù (mutation-soft plural)
kwinoù (mutation-hard plural)

From Proto-Brythonic *gwin, from late Proto-Celtic *wīnom, borrowed from Latin vīnum.


melen

From Proto-Brythonic *melɨn, from a derivative of Proto-Celtic *meli (“honey”) (compare Welsh melyn). Can be connected to the notion of 'yellow like honey'.


nukleon

head

nukleon m (collective, plural nukleonennoù, singulative nukleonenn)

nukleonennoù (plural)
nukleonenn (singulative)


bozon

bozon m (collective, plural bozonennoù, singulative bozonenn)

bozonennoù (plural)
bozonenn (singulative)


arc'hant

From Middle Breton archant, from Old Breton argant, from Proto-Brythonic *arɣant, from Proto-Celtic *argantom, from Proto-Indo-European *h₂erǵ- (“to shine”).


Meurzh

Meurzhioù (plural)
Meurzh (singular unmutated)
Veurzh (mutation-soft singular)
Meurzhioù (plural unmutated)
Veurzhioù (mutation-soft plural)


Merc'her

Merc’her (canonical masculine)
Merc'her (unmutated)
Verc'her (mutation-soft)

From Proto-Brythonic [Term?], borrowed through Vulgar Latin from Latin Mercurius (“Mercury”). Compare Welsh Mercher, Cornish Merher.


Yaou

From Proto-Brythonic [Term?], borrowed through Vulgar Latin from Latin Iūppiter, Iovis (“Jupiter”). Compare Welsh Iau, Cornish Yow.


Lun

From Proto-Brythonic [Term?], borrowed through Vulgar Latin from Latin lūna (“moon”). Compare Welsh dydd Llun, Cornish de Lun.


Sadorn

From Proto-Brythonic [Term?], borrowed through Vulgar Latin from Latin Saturnus (“Saturn”). Compare Cornish Sadorn, Welsh Sadwrn.


houarn

Inherited from Proto-Celtic *īsarnom (compare Welsh haearn, Old Irish íarn), from Proto-Indo-European *h₁ésh₂r̥ (“blood”).


hañv

From Middle Breton haff, from Old Breton ham, from Proto-Brythonic *haβ̃, from Proto-Celtic *samos, from Proto-Indo-European *sm̥-h₂-ó-.


gwerz

gwerzioù (plural)
gwerz (singular unmutated)
werz (mutation-soft singular)
kwerz (mutation-hard singular)
gwerzioù (plural unmutated)
werzioù (mutation-soft plural)
kwerzioù (mutation-hard plural)

From Middle Breton guers, from Proto-Brythonic *gwers, ultimately from Latin versus (“line of writing, verse”).


aour

From Proto-Brythonic *ėür, borrowed through Vulgar Latin [Term?] from Latin aurum.


glav

glav (unmutated)
c'hlav (mutation-soft)
klav (mutation-hard)

From Proto-Brythonic *glaw. Related to Welsh glaw (“rain”).


sukr

From Old French çucre, from Arabic سُكَّر (sukkar), from Persian شکر (šakar), from Sanskrit शर्करा (śárkarā, “ground or candied sugar”, originally “grit, gravel”).


gwer

From Middle Breton guezr, from Proto-Brythonic *gwɨrð with influence from guezr (“glass”), a borrowing from Vulgar Latin virdis, from Latin viridis (“green”).


erc'h

From Proto-Brythonic *ėrɣ (“snow”). Compare Cornish ergh and Welsh eira.


gwad

gwadoù (plural)
gwad (singular unmutated)
wad (mutation-soft singular)
kwad (mutation-hard singular)
gwadoù (plural unmutated)
wadoù (mutation-soft plural)
kwadoù (mutation-hard plural)

From Proto-Celtic *waytos, probably ultimately from the root of gwythi (“veins”), see that entry for cognates. Cognate with Welsh gwaed and Cornish goes.


oabl

head

oabl m (plural oabloù, singulative oablenn)


koumoul

koumoul m (collective, singulative koumoulenn)

koumoulenn (singulative)
koumoulenn (singular unmutated)
goumoulenn (mutation-soft singular)
c'houmoulenn (mutation-aspirate singular)
koumoul (plural unmutated)
goumoul (mutation-soft plural)
c'houmoul (mutation-aspirate plural)

From Proto-Brythonic *kuml, borrowed through Vulgar Latin from Latin cumulus (compare Welsh cwmwl).


kantol

From Proto-Brythonic *kantuɨll, borrowed from Vulgar Latin *cantēlla, from Latin candēla.


skeud

From Middle Breton squeut, from Old Breton scot, from Proto-Brythonic *skọd, from Proto-Celtic *skātu, from Proto-Indo-European *(s)ḱeh₃-.
Compare Welsh ysgod, Cornish skeus, Irish scáth.


kloc'h

From Proto-Brythonic *klox, from Proto-Celtic *klokkos (“bell”).


benveg sonerezh

benveg sonerezh m (plural binvioù sonerezh or benvegoù sonerezh)

binvioù sonerezh (plural)
benvegoù sonerezh (plural)


galaksienn

Ultimately from Ancient Greek γαλαξίας (galaxías).


planedenn

planedennoù (plural)
planedenn (singular unmutated)
blanedenn (mutation-soft singular)
flanedenn (mutation-aspirate singular)
planedennoù (plural unmutated)
blanedennoù (mutation-soft plural)
flanedennoù (mutation-aspirate plural)