had

From Proto-Brythonic *had, from Proto-Celtic *satos, from *sh₁-tó-, past participle of Proto-Indo-European *seh₁- (“to sow”). Cognate with English seed.


proton

head

proton m (collective, plural protonennoù, singulative protonenn)

protonennoù (plural)
protonenn (singulative)


neutron

neutron m (collective, plural neutronennoù, singulative neutronenn)

neutronennoù (plural)
neutronenn (singulative)


atom

atom m (collective, plural atomennoù, singulative atomenn)

atomennoù (plural)
atomenn (singulative)


gluon

gluon m (collective, plural gluonennoù, singulative gluonenn)

gluonennoù (plural)
gluonenn (singulative)


Sul

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


draen

draen f (plural drein, singulative draenenn)

drein (plural)
draenenn (singulative)
draen (singular unmutated)
zraen (mutation-soft singular)
traen (mutation-hard singular)
drein (plural unmutated)
zrein (mutation-soft plural)
trein (mutation-hard plural)

From Proto-Brythonic *draɣen, from Proto-Celtic *dragenā (“sloetree, blackthorn, Prunus spinosa”) (compare Old Irish draigen, modern Irish draighean), from Proto-Indo-European *dʰergʰ- (“blackbush, sloe tree”).


stumm

From Old Breton *stum (shown in the placename Stumou), from Proto-Celtic *tou(x)sman (“bend, curve”), cognate to Welsh ystum (“gesture, curve”) and Irish tuaim (“tumulus”).


Gwener

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

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


bozon

head

bozon m (collective, plural bozonennoù, singulative bozonenn)

bozonennoù (plural)
bozonenn (singulative)


nukleon

nukleon m (collective, plural nukleonennoù, singulative nukleonenn)

nukleonennoù (plural)
nukleonenn (singulative)


Lun

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


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.


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”).


kroc'hen

kroc'hen m (plural krec’hin or krec’hen)

From Proto-Celtic *krokkenom (“skin”), probably loaned from a non-Indo-European substrate language. However, compare Proto-Germanic *hrugjaz (“ridge, back, spine”) and German Krug.
Cognate with Cornish kroghen, Irish craiceann; Welsh croen (< *kroknom).


bleuñv

head

bleuñv m (collective, singulative bleuñvenn)

From Middle Breton bleuzff, from Old Breton bloduu, from Proto-Celtic *blātus (compare Welsh blodyn, Cornish bleujen, Irish bláth), from Proto-Indo-European *bʰleh₃- (“blossom, flower”).


ivin

ivinenn (singulative)
ewin (alternative)
iwin (alternative)

From Middle Breton iuinenn, from Old Breton iuguinenn, from Proto-Celtic *iwos (compare Cornish ywin, Welsh yw, Old Irish eó), from Proto-Indo-European *h₁eyHw- (compare English yew).


oabl

head

oabl m (plural oabloù, singulative oablenn)

oabloù (plural)
oablenn (singulative)
oabr (alternative)
ebr (alternative)


galaksienn

Ultimately from Ancient Greek γαλαξίας (galaxías).


chadenn

chadenn f (plural chadennoù or chadinier)

From Proto-Brythonic *kaduɨn, from Latin catēna. Compare also Welsh cadwyn and Cornish kadon.


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)


Aostralia

(geology) Australia (a continent consisting of the land on the Australian tectonic plate, i.e. Australia, New Guinea and intervening islands)