Lewis & Short

prō-consul (also separately, prō consŭle; v. pro, II. B. 2.; and abbreviated, procos.), is, m.

  1. I. One who at the close of his consulship in Rome became governor of a province, or military commander under a governor; a proconsul, Cic. Div. 2, 36, 76: Domitium proconsulem arcessivit, Sall. Fragm. ap. Prisc. p. 902 P.: agendas pro praetoribus, prove consulibus grates, Tac. A. 15, 22: L. Manilius Procos., Caes. B. G. 3, 20.
    1. B. Transf., of an ex-prœtor made governor of a province: (Gellius) cum pro consule ex praeturā in Graeciam venisset, Cic. Leg. 1, 20, 53; Liv. 37, 46.
      1. 2. = propraetor, Liv. 39, 29, 4 Weissenb. ad loc.; 33, 25, 9; 35, 22, 6 al.
  2. II. Under the emperors, who shared the provinces with the Senate, a governor in one of the provinces of the Senate, Suet. Aug. 47; Gai. Inst. 4, 139.
    1. B. Of municipal officers, Vulg. Act. 19, 38.