Trausi
The Trausi () (Herod., "Trausoi") or Thrausi (Liv.) were a Thracian tribe who inhabited the southwestern region of the Rhodopes. Herodotus writes of the Trausi: The ethnonym "Trausi" ("Thrausi") may derive from "Trauos", the name of a river. An etymology found in Duridanov's paper derives the tribe name from an adjective, meaning "The Crumblers" or "The Shatterers", deriving from PIE "*dhreu-", 'to crumble, grind' (Pokorny, pg. 274-275). The Ancient Greek verb "thrauô", 'to break in pieces, shatter', would be a cognate (from "thrauô" is formed Ancient Greek "thrausai", aor. opt. act. 3rd sg., and "thrausoi").