Baretti: A dictionary of the English and Italian languages
Illustrá-re, v. a.
1. to give light, illustrate; 2. to illustrate, explain; 3. to make illustrious or famous; 4. to declare; 5. to enlighten the mind; s. m. Illustrá-tóre, f. Illustrá-tríce, a commentator,adj. Illustrá-nte.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English