A subfamily for the Indo-European language household comprising the Insular plus the Continental limbs.
The language of the Celts.
The language or selection of dialects talked because of the Celts, including Welsh, Armoric or Breton, Irish, Gaelic, and Manx.
a branch regarding the Indo-European languages that (judging from inscriptions and place names) was spread widely over European countries when you look at the pre-Christian period
How would you define Celtic?