verb

• (transitive, law) To annul (as a law, decree, ordinance, etc.) by an authoritative act; to abolish by the authority of the maker or their successor; to repeal.
  "But let us look a little further, and see whether the New Testament abrogates what we see so frequently used in the Old."
• (transitive) To put an end to; to do away with.
• (molecular biology, transitive) To block a process or function.

adj

• (archaic) Abrogated; abolished.
  "Where hunters and woodcutters once slept in their boots by the dying light of their thousand fires and went on, old teutonic forebears with eyes incandesced by the visionary light of a massive rapacity, wave on wave of the violent and insane, their brains stoked with spoorless analogues of all that was, lean aryans with their abrogate semitic chapbook reenacting the dramas and parables therein and mindless and pale with a longing that nothing save dark's total restitution could appease."