revert vi1 : to come or go back (as to a former status or state) [if the donee of a general power fails to exercise it…the appointive assets to the donor's estate "W. M. McGovern, Jr. et al. "]
2 : to return to the grantor or his or her heirs as a reversion
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.