The Collaborative International Dictionary of English v.0.48:

Finnic \Finn"ic\, a.
   Of or pertaining to the Finns.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Finnic
    n 1: one of two branches of the Finno-Ugric languages; a family
         of languages including Finnish and Estonian (but not
         Hungarian) [syn: Fennic, Finnic, Non-Ugric]