seizin

sei·zin   [see-zin]
noun Law .
1.
(originally) possession of either land or chattel.
2.
the kind of possession or right to possession characteristic of estates of freehold.


dis·seize   [dis-seez]
verb (used with object), -seized, -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.