a branch of the Indo-European family of languages, including esp. Irish, Scots Gaelic, Welsh, and Breton, which survive now in Ireland, the Scottish Highlands, Wales, and Brittany. Abbreviation:Celt
–adjective
2.
of the Celts or their languages.
Also, Keltic.
Origin: 1600–10; < L Celticus, equiv. to Celt(ae) the Celts (see Celt) + -icus-ic
Celt·ic (kěl'tĭk, sěl'-) n. A subfamily of the Indo-European language family comprising the Insular and the Continental branches. adj. Of or relating to the Celtic people and languages.