Prelacy \Prel"a*cy\, n.; pl. {Prelacies}. [LL. praelatia. See {Prelate}; cf. {Prelaty}.] 1. The office or dignity of a prelate; church government by prelates. Prelacies may be termed the greater benefices. --Ayliffe. 2. The order of prelates, taken collectively; the body of ecclesiastical dignitaries. ``Divers of the reverend prelacy, and other most judicious men.'' --Hooker.