Baretti: A dictionary of the English and Italian languages
Calcá-re, v. a.
1. to tread, trample under foot;2. to press, lean heavily upon; 3. to crowd; 4. to crush, oppress; 5. to sit on eggs; 6. to tread (as the cock does the hen); s. m. Calcá-tóre.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
calcare: to tread, to croud, to throng, to ram in, to thrust hard, to tread vnder.