ἰόεις
From LSJ
πάντες γὰρ οἱ λαβόντες μάχαιραν ἐν μαχαίρῃ ἀπολοῦνται → all they that take the sword shall perish with the sword
English (LSJ)
[ῐ], εσα, εν, (ἴον)
A violet-coloured, dark, ἰόεντα σίδηρον Il.23.850, cf. Phoronis Fr.2, Q.S.6.48; ἰόεντα θάλασσαν Nic.Al.171. II ἰόεις, (ἰός B) poisonous, ἄκανθαι Androm. ap. Gal.14.38 [who makes ῐ short; cf. foreg.11].