at·torn /ə-'tərn/ vi [Anglo-French aturner to transfer (allegiance of a tenant to another lord), from Old French atorner to turn (to), arrange, from a - to + torner to turn]: to agree to be the tenant of a new landlord or owner of the same property
at·torn·ment n
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.