Akademik

Celtic
adj. & n.
—adj. of or relating to the Celts.
—n. a group of languages spoken by Celtic peoples, including Gaelic, Welsh, Cornish, and Breton.
Phrases and idioms:
Celtic cross a Latin cross with a circle round the centre.
Derivatives:
Celticism n.
Etymology: L celticus (as CELT) or F celtique

Useful english dictionary. 2012.