ἐπάγερσις
From LSJ
διὸ καὶ μεταλάττουσι τὴν φυσικὴν χρῆσιν εἰς τὴν παρὰ φύσιν αἱ δοκοῦσαι παρθένοι τῶν εἰδώλων → therefore those professing to be virgins of the idols even change the natural use into the unnatural (Origen, commentary on Romans 1:26)
English (LSJ)
εως, ἡ,
A mustering of forces against an enemy, Εέρξης τοῦ στρατοῦ ἐ. ποιέεται Hdt.7.19.