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Celtic connections

The six Celtic languages currently spoken are divided into two branches: Goidelic or Gaelic, and Brythonic or British. The former branch consists of Irish, Manx and Scottish Gaelic, while the latter branch includes Welsh, Cornish and Breton. While there are many similarities between the languages in each branch, there are fewer similiarities between the two branches as they have had thousands of years to grow apart.

Differences in spelling and sound changes can disguise related words, but there are quite a few cognates that appear in most or all of the Celtic languages. In some cases the words in one language might be archaic or only used in place names, and more cognates can be found in earlier versions of the the languages. Some words are cognate within each branch of the Celtic languages, but not between the branches.

Words marked with an asterisk are archaic and/or used only in place names. The Cornish words shown are in Common Cornish (Kernewek Kemmyn). The Breton words are in Peurunvan/Modern Standard Spelling.

Sound changes

Cognates that appear in all or most of the Celtic languages

Adjectives | Pronouns | Verbs | People | Animals | Birds | Fish | Parts of the body | Colours | Numbers | Time expressions | Musical terms | Other words

Words for people, relatives and professions

pobail, muintir pobaill, muinntir pobbyl, mooinjer pobl pobel pobl people, community
slua sluagh sleih llu lu lu people,
duine duine dooiney dyn den den man, person
fear fear fer gŵr gour gwaz man, husband
bean bean ben banw*, menyw ben maouez woman
bean (chéile) bean ben (heshee) gwraig gwrek gwreg wife, woman, lady
mac mac mac mab mab mab son, boy
iníon nighean 'neen, inneen merch myrgh merc'h daughter, girl
buachaill buachaill bochilley bugail bugel bugul, bugel shepherd, boy
bárd bàrd bard bardd bardh barzh poet
cailleach bana-
bhuidseach, briosag
ben obbee, buitçh, caillagh gwrach gwragh gwrac'h witch
dochtúir dotair fer lhee, ben lhee meddyg medhyk mezeg doctor
(ban)altra banaltram boanderey, boandyr nyrs klañvdiour nurse
saor saor seyr saer ser munuzer carpenter, wright, craftsman, artificer


  • * Words with an asterisk are archaic or obsolete


If you would like to make any corrections or additions to this page, or if you can provide recordings, please contact me.


Stòr-fhaclan Co-dhàimheil Ceilteach (Database of Celtic cognates)

McBain's Etymological Dictionary of the Gaelic Language

MAGUS: Multilingual Animal Glossary of Unveiled Synonyms

Other pages about Celtic languages

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