THESAURUS
swear off
abandon, abjure, break the habit, cede, discontinue, disgorge, dispense with, dispose of, do without, drop, dump, forgo, forswear, get along without, get rid of, give away, give up, have done with, kick, kiss good-bye, leave off, make a sacrifice, part with, quitclaim, recant, relinquish, render up, renounce, resign, retract, sacrifice, shake, spare, stop, surrender, take the pledge, throw off, throw up, vacate, waive, yield
ROGET THESAURUS
swear off
Temperance
VB
be temperate, abstain, forbear, refrain, deny oneself, spare,
swear off, know when one has had enough, know one's limit, take the pledge, go on the wagon.