rehabilitationn.

rehabilitation (n.)1530s, from Middle French réhabilitation and directly from Medieval Latin rehabilitationem (nominative rehabilitatio) "restoration," noun of action from past participle stem of rehabilitare, from re- "again" (see re-) + habitare "make fit," from Latin habilis "easily managed, fit" (see able). Specifically of criminals, addicts, etc., from 1940.