Baretti: A dictionary of the English and Italian languages
Vantá-re, v. a. to vaunt, praise, laud; v. n.
1. to boast, brag, glory, to vapour; 2. to pretend to do a thing, to undertake to do it. Fornito avea quello, di che vantato s'era, he had done what he undertook to do; 3. to promise confidently to perform a thing; s. m. Vantá-tóre,f. Vantá-tríce.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
vantare: to exalt with praise or magnifie with vanning or boasting.