The word "mozzarella" is the diminutive form of mozza, a cheese, which mozzarella was originally called. Mozza derives from mozzare, meaning "to cut off" or "dock" (as in docking a dog's tail), which probably refers to the making of the cheese: the cheese maker removes big portions of the cheese from the whey liquid and breaks or cuts off the pieces by hand. See also buffalo mozzarella.
The word "mozzarella" is the diminutive form of mozza, a cheese, which mozzarella was originally called. Mozza derives from mozzare, meaning "to cut off" or "dock" (as in docking a dog's tail), which probably refers to the making of the cheese: the cheese maker removes big portions of the cheese from the whey liquid and breaks or cuts off the pieces by hand. See also buffalo mozzarella.

