(verb) : ob-rŏgo, āvi, ātum, 1
* Partly to repeal an existing law by proposing a new one, to evade, weaken, invalidate, abrogate it: obrogare est legis prioris infirmandae causā legem aliam ferre, Paul. ex Fest. p. 187 Müll.: obrogatur, id est mutatur aliquid ex primā lege, Ulp. tit. 1, 3; v. abrogo: huic legi nec obrogari fas est, neque derogari ex hac aliquid licet, neque tota abrogari potest,Cic. Rep. 3, 22, 33 Mos.: quid, quod obrogatur legibus Caesaris, quae jubent? etc.,id. Phil. 1, 9, 16: quia ubi duae contrariae leges sunt, semper antiquae obrogat nova,Liv. 9, 34, 9; Suet. Claud 23: cf. id Caes. 28.
* To oppose the passage of a bill (post-class.): obrogare auso iegibus suis Minucio,Flor. 3, 15, 4; cf.: ausus obrogare de legibus consul Philippus, id. 3, 17, 8.

s. TLL