means A stout, intelligent, hoofed farm animal raised for meat, also kept as a pet, and proverbially associated with mud, appetite, and squealing.

from From Middle English 'pigge,' originally meaning a young pig, of uncertain ultimate origin — Old English left us 'picga' in a compound but its deeper roots are murky. For centuries the grown animal was a 'swine' (related to Latin 'sus' and the source of 'sow'), while 'pig' crept up from the nursery word for the little ones until it took over the whole sty.