Relapse

rē-laps′, v.i. to slide, sink, or fall back: to return to a former state of practice: to backslide.— n. a falling back into a former bad state: ( med. ) the return of a disease after convalescence.— n. Relap′ser .— adj. Relap′sing . [L. relabi , relapsus — re- , back, lab i , to slide.]