REVERSION

noun Etymology: Middle English, from Anglo-French, from Latin ~-, reversio act of returning, from revertere Date: 15th century 1. the part of a simple estate remaining in the control of its owner after the owner has granted therefrom a lesser particular estate, a future interest in property left in the control of a grantor or the grantor's successor, the right of succession or future possession or enjoyment, 3. an act or the process of returning (as to a former condition), a return toward an ancestral type or condition ; reappearance of an ancestral character, an act or instance of turning the opposite way ; the state of being so turned, a product of ~