v. t.
Go on both in hand, O nations, never be disunited, be the praise . . . of all posterity! Milton. [ 1913 Webster ]
v. i. To part; to fall asunder; to become separated. [ 1913 Webster ]
The joints of the body politic do separate and disunite. South. [ 1913 Webster ]
n. One who, or that which, disjoins or causes disunion. [ 1913 Webster ]