forswear
verb /fɔːˈsweə(r)/
  /fɔːrˈswer/
(formal or literary)Verb Forms
| present simple I / you / we / they forswear |    /fɔːˈsweə(r)/   /fɔːrˈswer/  | 
| he / she / it forswears |    /fɔːˈsweəz/   /fɔːrˈswerz/  | 
| past simple forswore |    /fɔːˈswɔː(r)/   /fɔːrˈswɔːr/  | 
| past participle forsworn |    /fɔːˈswɔːn/   /fɔːrˈswɔːrn/  | 
| -ing form forswearing |    /fɔːˈsweərɪŋ/   /fɔːrˈswerɪŋ/  | 
- forswear something to stop doing or using something; to make a promise that you will stop doing or using something synonym renounce
- The group forswears all worldly possessions.
 - The country has not forsworn the use of chemical weapons.
 
Word OriginOld English forswerian (from for- and swear).