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)
prae-rĭgĭdus: a, um, adj.,
I very stiff, very rigid (late Lat.): mens, Auct. Quint. Decl. 17, 7.
prærĭgĭdus, a, um, très rigide, très austère : Amm. 24, 2, 5.