verb (used with object), dis·seized, dis·seiz·ing. Law.

to deprive (a person) of seizin, or of the possession, of a freehold interest in land, especially wrongfully or by force; oust.

Origin of disseize

1250–1300; Middle English disseise < Anglo-French disseisir, equivalent to dis- dis-1 + seisir to seize
Related formsdis·sei·zor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019