Baretti: A dictionary of the English and Italian languages
Studiós-o, adj. sup. Studiós-íssimo,
1. studious, given to study, delighting to study; 2. studious, diligent, careful; 3. hasty, swift, nimble. Camminare con istudioso, passo, to walk apace or fast; adv. Studiós-aménte, sup. Studiós-issimaménte.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
studioso: studious, diligent, earnest, carefull, musing, desirous of learning.