αὐθαίμων

ον, ονος, ον

αἷμα

A. of the same blood, brother, sister, kinsman, S. Tr. 1041 (lyr.):—also αὔθ‐αιμος, ον, Id. OC 1078, AP 7.707 (Diosc.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project