Thrax
Could not find Thracas in Logeion dictionaries.
Thracas Proper-name noun: masculine accusative plural of Thrax
Thrax, ācis, v. Thracia, E.
Thrāx, ācis, m. (Θρᾴξ), s. Thrāces.
Jafeth ‥ habuit septem filios ‥ septimus Tiras a quo Traces
trax, dirus
tres sunt ii, Villicus, Thrax, et Ursi natus / ‥ / ut sint ex re nomina, reddit hos reatus / traces et mortiferos, ursos bruti status
1 Thrāx, (15) v. Thræx.
2 Thrāx, (12) ācis, m. , v. Thraces.
Thrax
also Thraex and Threx. See gladiatores, p. 734.