Lewis & Short

dōdrans, antis, m., nine twelfths or three fourths of any thing (v. as, I.).

  1. I. In gen.: alicujus aedificii reliquum dodrantem emere, Cic. Att. 1, 14 fin.; cf.: solvere dodrantem, Mart. 8, 9: heres ex dodrante, Nep. Att. 5, 2; Suet. Caes. 83: jugeri, Col. 5, 1, 11; Liv. 8, 11: operae, Col. 2, 4, 8: dodrantes semuncias horarum, Plin. 2, 14, 11, § 58: pondo dodrans, Scrib. Comp. 45 et saep.
  2. II. Esp.
          1. (α) As a measure of length, nine inches, Plin. 36, 9, 14, § 71; Suet. Aug. 79; Front. Aquaed. 65.
          2. (β) As a measure of time, three quarters of an hour, Plin. 18, 25, 58, § 219; 2, 14, 11, § 58.