διώνυμος
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη → The first and best victory is to conquer self.
English (LSJ)
ον, (δίς, ὄνυμα, ὄνομα)
A with two names, D.T.636.11 (s. v. l.); or, of two persons, named together, θεαί E.Ph.683 (lyr.). II (διά) far-famed, εὐτυχία Plu.Tim.30; στρατηγός App.BC4.54; χῶρος J.BJ 5.1.3.