Lewis & Short

ap-prŏbo (adp-, Fleck., Bait., Halm, Weissenb.; app-, Kayser), āvi, ātum, 1, v. a.

  1. I. To assent to as good, to regard as good, to approve, to favor (freq. and class.; syn.: probo, laudo): id si non fama adprobat, * Ter. Phorm. 4, 5, 12: (populus Romanus) meum jus jurandum unā voce et consensu approbavit, Cic. Pis. 3, 7: approbatā laudatāque Cottae sententiā, id. Sest. 34, 74: aliquid magno clamore, id. Arch. 10, 24: legiones clamore donum adprobantes, Liv. 7, 37; 7, 41: consilium vehementer adprobare, Cic. ad Q. Fr. 3, 4 et saep.
    So of the gods, to allow a thing to take place, to favor (cf. admitto, II. B.): quod actum est di adprobent, Cic. Fam. 2, 15; 1, 9, 19: musis omnibus adprobantibus, id. ib. 7, 23, 2; cf. Plaut. Am. prol. 13.
  2. II. To show as being good and true, to make evident, to prove, demonstrate, confirm, establish: hoc autem nihil attinet approbari, Cic. Inv. 1, 36 fin.: innocentiam adprobare, Tac. A. 1, 44: excusationem, id. Agr. 42.
    With acc. and inf.: vivere eos approbant, Plin. 9, 57, 83: quo magis degenerāsse eum a civili more approbaret, Suet. Aug. 17: Cajo talem et se et exercitum approbavit, ut, etc., Suet. Galb. 6 al.
  3. III. Aliquid alicui adprobare, to make good to one, to render acceptable, satisfactory: opus manu factum regi adprobavit, Vitr. 9, 3: prima castrorum rudimenta duci adprobavit, his first military duties he learned to the satisfaction of his commander, Tac. Agr. 5; Dig. 19, 2, 24; cf. Herz. ad Caes. B. G. 7, 63.