Lewis & Short

succīdĭa, ae, f. [2. succido].

  1. I. A leg or side of meat cut off, esp. of pork; a leg of pork, flitch of bacon, Varr. L.L. 5, § 110 Müll.; id. R. R. 2, 4, 3: jam hortum ipsi agricolae succidiam alteram appellant, their second flitch, Cic. Sen. 16, 56.
  2. * II. Transf., a slaughtering: succidias humanas facere, Cato ap. Gell. 13, 24, 12.