Baretti: A dictionary of the English and Italian languages
Rátto, s. m.
1. rapine, robbery, pillage. Viver di —, to live by hook and by crook; 2. rape, ravishment; 3. the shallow part of a river;4. a rat or mouse. Pesce di —, the sting-ray (a fish).
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
ratto: swift, speedy, hasty, fleet, suddaine, quicke, nimble. Also high, craggie or steepe. Also rapt, raped, rauished, deflowred, taken or carried away perforce. Also a rape, a rauishment or deflowring of a woman against hir will and consent. Also a Rat or a Mouse. Also a Ray or Skatefish. Also rapine or greedy praying as wilde beasts commit.