Vaunt \Vaunt\, v. i. [imp. & p. p. {Vaunted}; p. pr. & vb. n. {Vaunting}.] [F. vanter, LL. vanitare, fr. L. vanus vain. See {Vain}.] 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.