life estate pur autre vie
Definition from Wiktionary, the free dictionary
- (law) An estate in land which is given by a grantor to a party only for the duration of the life of a third party, and for which ownership will revert to another upon the death of that third party.
- Joe gives property "to Mike for the life of Bob"; Joe has created a life estate pur autre vie for Mike, but when Bob dies, the property automatically reverts to Joe.
Usage notes 
Often written with the French portion italicized: life estate pur autre vie.