forswear
Concise Oxford English Dictionary © 2008 Oxford University Press:
forswear/fɔːˈsweə(r)/
▶verb (past forswore; past part. forsworn) formal
- 1 agree to give up or do without.
- 2 (forswear oneself/be forsworn) archaic commit perjury.
'forswear' also found in these Oxford entries:

