μεγαλαυχέω
From LSJ
Menander, Monostichoi, 501
English (LSJ)
A boast, brag, A.Ag.1528 (anap.), LXX Ez.16.50, Ph. 1.284, AP5.272 (Agath.); ἐπί τινι Plb.12.13.10; ἐν ταῖς εὐπραγίαις Id.8.21.11; διά τι D.S.15.16:—also in Med., Pl.Alc.1.104c, R.395d; ἐπί τινι App.BC1.13. II c.acc., boast of, μονομάχιον Id.Gall. 10.