ἐπιτηδεύειν
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)
Greek > English (Woodhouse Verbs Reversed)
(see also ἐπιτηδεύω): follow, practise, be engaged in, carry on a profession