Baretti: A dictionary of the English and Italian languages
Troncá-re, v. a.
1. to cut, to cut off. — la testa ad uno, to cut off one's head; 2. to break; 3. to kill. — dalla radice, to eradicate; s. m.Troncá-tóre , f. Troncá-tríce.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
troncare: to cut off, to cut short, to curtall, to abridge. Also to clip, or pare. Also to shiuer, or splitter. Also to maime, or mangie.