Baretti: A dictionary of the English and Italian languages
Squadrá-re, v. a.
1. to square, rule, to work up to a square, to make at right angles; 2. to measure accurately; 3. to look at a thing attentively from head to foot; 4. to do any thing to the disparagement of another; 5. to examine, search, inquire into. Io l'ho squadrato alla prima, I smelt him out at first, I knew the man as soon as I saw him; 6. to set open, declare, show; 7. to break, split. Chi verrà mai che squadre questo mio cor di smalto? who shall ever break this stony heart of mine? — unpezzo,to level a cannon; 8. to quarter, tear one limb from limb; v. r. to be quartered; s. m. Squadrá-tóre,f. Squadrá-tríce; adj. Squadrá-nte.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
squadrare: to square, to rule, to squire, to cut or hew out. Also to make foure square. Also to quarter in pieces. Also to reduce into squadrons. Also to marke, to heede, to note or watch. Also to fadge, to square, to become, to fit, to beseeme or sute well together.