ἑδραίως

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

Spanish

firmemente

Greek (Liddell-Scott)

ἑδραίως: ἐπίρρ. στερεῶς, ἰσχυρῶς, ἐπιμόνως, Ἡρωδιαν. 3. 14, 10 κλ.