Baretti: A dictionary of the English and Italian languages
Múscol-o, s. m. dim. Múscol-étto, Múscol-íno, muscle of the body.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
muscolo: a muscle or fleshy part of the body consisting of flesh, veines, sinnewes and arteries, being an instrumental part of the body, seruing for voluntary moouing, being a substance barder and endued with lesse sence then a sinew; as also softer and indued with more sence then a ligature. It is also an engine of warre, vnder which the Romans were wont safely to approch the wals of a towne to fill vp the ditches. It is also vsed for a fish, which continually swimmeth before the Whale, and serueth as a gard vnto it, that it run not vpon rockes, called the Guid-whale and of some the Whirle-poole.