ἑτερόφωνος
From LSJ
οὕτως ἐξ ἐχθρῶν αὐτοκτόνα πέμπετο δῶρα, ἐν χάριτος προφάσει μοῖραν ἔχοντα μόρου → thus mutual gifts that bring death were bestowed by enemies, gifts that brought the lot of death in the name of a favor
English (LSJ)
ον,
A of different voice: hence, foreign, A. Th. 170(lyr.). II discrepant, opp. σύμφωνος, Porph.Chr.15.