Definition of forswear verb from the Oxford Advanced Learner's Dictionary

 

forswear

 verb
verb
BrE BrE//fɔːˈsweə(r)//
 
; NAmE NAmE//fɔːrˈswer//
 
Verb Forms present simple I / you / we / they forswear
BrE BrE//fɔːˈsweə(r)//
 
; NAmE NAmE//fɔːrˈswer//
 
he / she / it forswears
BrE BrE//fɔːˈsweəz//
 
; NAmE NAmE//fɔːrˈswerz//
 
past simple forswore
BrE BrE//fɔːˈswɔː(r)//
 
; NAmE NAmE//fɔːrˈswɔːr//
 
past participle forsworn
BrE BrE//fɔːˈswɔːn//
 
; NAmE NAmE//fɔːrˈswɔːrn//
 
-ing form forswearing
BrE BrE//fɔːˈsweərɪŋ//
 
; NAmE NAmE//fɔːrˈswerɪŋ//
 
 
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forswear something (formal or literary) 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 Origin Old English forswerian (from for- and swear).
See the Oxford Advanced American Dictionary entry: forswear