n. (Eng. Hist.) One of those adherents of James II. who refused to take the oath of allegiance to William and Mary, or to their successors, after the revolution of 1688; a Jacobite. [ 1913 Webster ]
n. (Eng. Hist.) The doctrines, or action, of the Nonjurors. [ 1913 Webster ]
n. (Law) One bound by a common oath with others. [ Obs. ] [ 1913 Webster ]