For·swear v. t. [imp. Forswore p. p. Forsworn p. pr. & vb. n. Forswearing.]
1. To reject or renounce upon oath; hence, to renounce earnestly, determinedly, or with protestations.
I . . . do forswear her. --Shak.
2. To deny upon oath.
Like innocence, and as serenely bold
As truth, how loudly he forswears thy gold! --Dryden.
To forswear one's self, to swear falsely; to perjure one's self. “Thou shalt not forswear thyself.”
Syn: -- See Perjure.