Baretti: A dictionary of the English and Italian languages
Diffónd-ere, v. a. (V. fondere,) to diffuse, pour out. — in lagrime, to melt into tears; v. r.to enlarge or dwell upon a subject; s. m.Diffónd-itóre , f. Diffónd-itríce; adj. Diffónd-énte.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
diffondere: to defuse, to shed, to scatter, to melt away.