Prerogative

1. An exclusive or peculiar privilege; prior and indefeasible right; fundamental and essential possession; -- used generally of an official and hereditary right which may be asserted without question, and for the exercise of which there is no responsibility or accountability as to the fact and the manner of its exercise.
2. Precedence; preëminence; first rank.
Prerogative Court (Eng. Law),
a court which formerly had authority in the matter of wills and administrations, where the deceased left bona notabilia, or effects of the value of five pounds, in two or more different dioceses.
Prerogative office ,
the office in which wills proved in the Prerogative Court were registered.