Verb
promise to abstain from
Source: WordNetMust swear off from swearing. Bad habit. Rutherford B. Hayes
To swear off making mistakes is very easy. All you have to do is swear off having ideas. Leo Burnett
May the New Year bring you courage to break your resolutions early! My own plan is to swear off every kind of virtue, so that I triumph even when I fall! Aleister Crowley
Don't swear off all the fruits just because you ate one bad apple. Tiffanie DeBartolo
Don't swear off of beggary and jail. Russian Proverb
I have sworn off cigarettes altogether Source: Internet