Forswear

v. t.	1.	To reject or renounce upon oath; hence, to renounce earnestly, determinedly, or with protestations. [imp. Forswore ; p. p. Forsworn ; p. pr. & vb. n. Forswearing.] 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. - Matt. v. 33.
v. i.	1.	To swear falsely; to commit perjury.

Verb

1.

forswear - formally reject or disavow a formerly held belief, usually under pressure; "He retracted his earlier statements about his religion"; "She abjured her beliefs" Synonyms: abjure, recant, retract, resile

abandon, abdicate, abjure, acknowledge defeat, assert the contrary, back down, back out, backwater, belie, brush aside, cease, cede, chuck, chuck out, climb down, contemn, contest, contradict, contravene, controvert, counter, crawfish out, cross, cry quits, decline, deny, desist from, despise, disaffirm, disallow, disapprove, disavow, discard, disclaim, discontinue, discount, disdain, disgorge, dismiss, disown, dispense with, dispose of, disprove, dispute, disregard, do without, drop, dump, eat crow, eat humble pie, except, exclude, forgo, gainsay, get along without, get rid of, give away, give over, give up, hand over, have done with, ignore, impugn, join issue upon, kiss good-bye, lay down, leave off, make a sacrifice, not accept, not admit, nullify, oppose, palinode, part with, pass by, pass up, push aside, quitclaim, rebuff, recall, recant, refuse, refuse to admit, refuse to consider, refute, reject, relinquish, render up, renege, renounce, repel, repudiate, repulse, resign, retract, revoke, sacrifice, scout, shove away, spare, spurn, stop, surrender, swallow, swear off, take back, take issue with, take the pledge, throw away, throw out, throw up, turn away, turn out, unsay, vacate, waive, withdraw, yield