Vouch

v. t.	1.	[imp. & p. p. Vouched ; p. pr. & vb. n. Vouching.]
	1.	To call; to summon. [They] vouch (as I might say) to their aid the authority of the writers. - Sir T. Elyot.
	2.	To call upon to witness; to obtest. Vouch the silent stars and conscious moon. - Dryden.
	3.	To warrant; to maintain by affirmations; to attest; to affirm; to avouch. They made him ashamed to vouch the truth of the relation, and afterwards to credit it. - Atterbury.
	4.	To back; to support; to confirm; to establish. Me damp horror chilled At such bold words vouched with a deed so bold. - Milton.
	5.	(Law) To call into court to warrant and defend, or to make good a warranty of title. He vouches the tenant in tail, who vouches over the common vouchee. - Blackstone.
v. i.	1.	To bear witness; to give testimony or full attestation. He will not believe her until the elector of Hanover shall vouch for the truth of what she has . . . affirmed. - Swift.
	2.	To assert; to aver; to declare.
n.	1.	Warrant; attestation. The vouch of very malice itself. - Shak.

Verb	1.	vouch - give personal assurance; guarantee; "Will he vouch for me?"
	2.	vouch - give surety or assume responsibility; "I vouch for the quality of my products" Synonyms: guarantee
	3.	vouch - summon (a vouchee) into court to warrant or defend a title
	4.	vouch - give supporting evidence; "He vouched his words by his deeds"

acknowledge, affirm, affirmance, affirmation, allegation, allege, and candle, announcement, annunciation, assert under oath, assertion, asseverate, asseveration, assure, attest, aver, averment, avouch, avouchment, avow, avowal, back up, bear witness, book, certify, conclusion, confirm, corroborate, countersign, creed, declaration, depone, depose, dictum, disclose, endorse, enunciation, give evidence, guarantee, ipse dixit, kiss the book, make a promise, manifesto, pledge, plight, position, position paper, positive declaration, predicate, predication, proclamation, profession, promise, pronouncement, proposition, protest, protestation, prove, say, say-so, saying, sponsor, stance, stand, statement, substantiate, support, swear, swear by bell, swear the truth, swear to, swear to God, swear to goodness, testify, troth, underwrite, uphold, utterance, verify, vouch for, vow, warrant, witness, word