Lewis & Short

dū̆pondĭus, ii, m., or dŭpondĭum, ii (cf. Varr. L. L. 9, 49, § 81; also, dĭpon-dĭum, Gromat. Vet. p. 28, 14; p. 167, 11), n. [duo-pondus], the sum of two asses.

  1. I. As a coin, Varr. L. L. 5, § 169; 9, § 81 Müll.; Plin. 33, 3, 13, § 42; Cic. Quint. 16, 53; Petr. 14, 3 al.
    1. B. Transf., need, want, Petr. 58, 13.
  2. II. As a measure, two feet, Col. 3, 13, 5; 3, 15, 2 et saep.