Lewis & Short

cōlon or cōlum, i, n. (cōlus, i, m., Ser. Samm. 31, 1), = κῶλον (a member).

  1. I. The colon or great gut (the largest of the intestines), Plin. 11, 37, 79, § 202.
    Esp., as the part affected by the colic: coli tormentum, Plin. 22, 22, 37, § 79: coli dolor, Scrib. Comp. 122.
    Hence,
    1. B. A disease of the colon, the colic, Plin. 20, 15, 57, § 162; 31, 9, 45, § 102; Scrib. Comp. l. l.; Ser. Samm. l. l.
  2. II. Transf., a member of a verse (pure Lat. membrum), * Quint. 9, 4, 78; of a poem, Aug. ap. Don. Vit. Verg. c. 12.