\Dis*seize"\, v. t. [imp. & p. p. {Disseized}; p. pr. & vb. n. {Disseizing}.] [Pref. dis- + seize: cf. F. dessaisir.] (Law) To deprive of seizin or possession; to dispossess or oust wrongfully (one in freehold possession of land); -- followed by of; as, to disseize a tenant of his freehold. [Written also {disseise}.] Which savage beasts strive as eagerly to keep and hold those golden mines, as the Arimaspians to disseize them thereof. --Holland.