ἠμέν
From LSJ
καὶ ὑποθέμενος κατὰ τῆς κεφαλῆς φέρειν τὰς πληγάς, ὡς ἐν ἐκείνῃ τοῦ τε κακοῦ τοῦ πρὸς ἀνθρώπους → and having instructed them to bring their blows against the head, seeing that the harm to humans ... (Josephus, Antiquities of the Jews 1.50)
English (LSJ)
Ep. Conj., correl. to ἠδέ (from ἦ and μέν, δέ),
A both . . and... ἠ. νέοι ἠδὲ γέροντες Il.2.789, etc.; ἠ. ἀνακλῖναι πυκινὸν νέφος ἠδ' ἐπιθεῖναι 5.751; sts. καί is added to ἠδέ, ἠ. θεὸν ἠδὲ καὶ ἄνδρα 5.128; ἠ. δέμας ἠδὲ καὶ αὐδήν Od.2.268; ἠ. δή ποτ' ἐμεῦ πάρος ἔκλυες . . ἠδ' ἔτι καὶ νῦν μοι . . ἐπικρήηνον ἐέλδωρ Il.1.453: rarely folld. by δέ or τε, ἠ . . . πολλοὶ δέ . . 12.428; ἠ. ὅσοι χαλεποί . . οἵ τε φιλόξεινοι Od.8.575: more freq. by καί, Il.15.664,670, Hes.Op.339.