Definition of forswear
Middle English forsweren from Old English forswerian (“to swear falsely”). More at for- + swear.
forswear (third-person singular simple present forswears, present participle forswearing, simple past forswore, past participle forsworn)
- (transitive) To renounce or deny something, especially under oath.
- (intransitive) To commit perjury.
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