ἀρουροφύλαξ

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)

Source

German (Pape)

[Seite 358] ακος, ὁ, ein silberähnlicher Stein im Paktolus, Plut. de fluv. 7, 3, wo man αὐροφύλαξ ändern will.