ματαιοφρονώ
From LSJ
ἤκουσεν ἐν Ῥώμῃ καὶ ἀρσένων ἑταιρίαν εἶναι → he heard that there was also a fellowship of males in Rome (Severius, commentary on Romans 1:27)
Greek Monolingual
ματαιοφρονῶ, -έω (Α) ματαιόφρων
σκέπτομαι άσκοπα και ανόητα, ματαιοδοξώ.