\Pri"ma*cy\, n. [LL. primatia, fr. L. primas, -atis, one
of the first or principal, chief, fr. primus first: cf. F.
primatie. See {Prime}, a.]
1. The state or condition of being prime or first, as in
   time, place, rank, etc., hence, excellency; supremacy.
   [R.] --De Quincey.

2. The office, rank, or character of a primate; the chief
   ecclesiastical station or dignity in a national church;
   the office or dignity of an archbishop; as, the primacy of
   England.