Lewis & Short

per-rŏgo, āvi, ātum, 1, v. a.

  1. I. To ask through in succession, to ask one after another (perh. not ante-Aug.): sententias, Liv. 29, 19; Tac. H. 4, 9; Suet. Aug. 35.
  2. II. Transf., to carry through, to pass (a law) after proposing it: tribunus plebis legem perrogavit, Val. Max. 8, 6, 4; 1, 2 ext. 1.