ἀμίκτως
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
Russian (Dvoretsky)
ἀμίκτως: без примеси: ἀμικτότατα ἔχειν Plat. быть совершенно свободным от примесей.