Baretti: A dictionary of the English and Italian languages
1. perhaps. — di sì, it may be so. — di no, it may be not. Senza — io v'andrò,I'll go, without doubt; 2. why, what. — ch' ei non è bello? why, is he not handsome? 3. about. E d'età — di dieci anni, he is about ten years of age. Ivi — a tre miglia, about three miles from thence. Stare in —, to be in doubt.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
forse: perhaps, it may be, peraduenture, a note of doubt or vncertaintie.