Baretti: A dictionary of the English and Italian languages
Púro, s. m. (obs.) purity. V. purezza.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
puro: pure, neate, cleane, vnspotted, neat, naked, cleare, spotlesse, without filth or mixture, vnmixed, of it selfe, vncorrupted. Also sincere, vpright, plaine, iust, honest, vntainted.