ὀκταέτης
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)
ες,
A eight years old, Hp.Epid.1.10 ; of eight years, χρόνος D.S.17.94 :—fem. ὀκτα-έτις, ἡ, IG4.620, Pl.Ep.361d.