Defeasance

·noun A rendering null or void.

II. Defeasance ·noun A defeat; an Overthrow.

III. Defeasance ·noun A condition, relating to a deed, which being performed, the deed is defeated or rendered void; or a collateral deed, made at the same time with a feoffment, or other conveyance, containing conditions, on the performance of which the estate then created may be defeated.