Vaunt v. i. [imp. & p. p. Vaunted; p. pr. & vb. n. Vaunting.] To boast; to make a vain display of one's own worth, attainments, decorations, or the like; to talk ostentatiously; to brag.
Pride, which prompts a man to vaunt and overvalue what he is, does incline him to disvalue what he has. --Gov. of Tongue.