Source : Webster's Revised Unabridged Dictionary (1913)

Thracian \Thra"cian\, a.
   Of or pertaining to Thrace, or its people. -- n. A native or
   inhabitant of Thrace.

Source : WordNet®

Thracian
     n : a Thraco-Phrygian language spoken by the ancient people of
         Thrace but extinct by the early Middle Ages