The Collaborative International Dictionary of English v.0.48:
Abrogate \Ab"ro*gate\, v. t. [imp. & p. p. Abrogated; p. pr. &
vb. n. Abrogating.] [L. abrogatus, p. p. of abrogare; ab +
rogare to ask, require, propose. See Rogation.]
1. To annul by an authoritative act; to abolish by the
authority of the maker or his successor; to repeal; --
applied to the repeal of laws, decrees, ordinances, the
abolition of customs, etc.
Let us see whether the New Testament abrogates what
we so frequently see in the Old. --South.
Whose laws, like those of the Medes and Persian,
they can not alter or abrogate. --Burke.
2. To put an end to; to do away with. --Shak.
Syn: To abolish; annul; do away; set aside; revoke; repeal;
cancel; annihilate. See Abolish.