Synonyms and related words :
abandon, abjure, abort, belay, break, break off, break the habit, cancel, cease, come off, cut it out, cut out, desist, disarrange, disjoin, disuse, drop, drop it, end, forswear, give, give over, give up, halt, have done with, hold, interrupt, kick, knock it off, lay off, leave off, let go, nol-pros, not pursue with, put behind one, quit, refrain, relinquish, renounce, resign, scrub, shake, stay, stop, surcease, suspend, swear off, take the pledge, terminate, throw off, waive,