The Collaborative International Dictionary of English v.0.48:
Ostrogoth \Os"tro*goth\, prop. n. [L. Ostrogothi, pl. See East, and Goth.] One of the Eastern Goths. See Goth. [1913 Webster]WordNet (r) 3.0 (2006):
Ostrogoth n 1: a member of the eastern group of Goths who created a kingdom in northern Italy around 500 AD