Definition from Wiktionary, the free dictionary
seisin (plural seisins)
- (law, common law, historical) A feudal term for an entitlement to a freehold estate with a right to immediate possession; still used in technical discussions of real property law today.
- (obsolete) The act of taking possession.
- (obsolete) The thing possessed; property.
- (Can we find and add a quotation of Sir M. Hale to this entry?)
- act of seizing