Lewis & Short

porcus, i, m. [cf. Gr. πόρκος, Varr. L. L. 5, § 97 Müll.; Umbr. purka, O. H. Germ. farah].

  1. I. Lit., a tame swine, a hog, pig: sunt domi agni, et porci sacres, Plaut. Rud. 4, 6, 4: villa abundat porco, haedo, agno, gallinā, etc., Cic. Sen. 16, 56; Mart. 8, 22, 1: Scrofa alat suos porcos, her pigs, Varr. R. R. 2, 4, 13: porcus femina, a female swine, sow, Cato, R. R. 134; Cic. Leg. 2, 22, 57.
    Of a glutton, as a term of reproach, hog, Hor. Ep. 1, 4, 16; Cat. 39, 11.
  2. II. Transf.
    1. A. Porcus marinus, the sea-hog, porpoise, Plin. 32, 5, 19, § 56; also called simply porcus, id. 32, 2, 9, § 19.
    2. B. = pudendum muliebre, Varr. R. R. 2, 4, 10.
    3. C. Caput porci, in milit. lang., a wedge-shaped order of battle, Amm. 17, 13; cf. porcinus, II.