ἐπιών
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)
French (Bailly abrégé)
οῦσα, όν :
part. prés. de ἔπειμι².
English (Autenrieth)
see ἔπειμ Od. 9.2.
Russian (Dvoretsky)
ἐπιών: οῦσα, όν part. к ἔπειμι II.
English (Woodhouse)
succeeding, about to occur, any chance comer, coming after, coming directly, the ordinary man