vouch means an assertion, a declaration; also, a formal attestation or warrant of the correctness or truth of something.
Among words judged in Lexicurio's Arena, vouch ranks #1,120 of 42,762 for Qualifying.
vouch is pronounced /ˈvaʊt͡ʃ/.
Etymology
The verb is derived from Middle English vouchen (“to call, summon; to provide; to make available, proffer; to affirm, declare formally”) [and other forms], from Anglo-Norman vocher, voucher, woucher, and Old French vocher, voucher, vochier (“to call, summon; to claim; to call upon, invoke; to denounce”) [and other forms], from Vulgar Latin *vocicāre, derived from Latin vocāre (“to call, summon; to call upon, invoke; to designate, name; to bring or put (into a condition or state”), ultimately from Proto-Indo-European *wekʷ- (“to sound out; to speak”). Verb sense 8.1 (“to summon (someone) into court to establish a warranty of title to land”) in the form vouch to warrant or vouch to warranty is a calque from Anglo-Norman and Old French voucher a garant. The noun is derived from the verb.
noun
- An assertion, a declaration; also, a formal attestation or warrant of the correctness or truth of something.
verb
- To call on (someone) to be a witness to something.
- To cite or rely on (an authority, a written work, etc.) in support of one's actions or opinions.
- To affirm or warrant the correctness or truth of (something); also, to affirm or warrant (the truth of an assertion or statement).
- To bear witness or testify to the nature or qualities (of someone or something).
- To back, confirm, or support (someone or something) with credible evidence or proof.
- Synonym of vouchsafe (“to condescendingly or graciously give or grant (something)”).
- To assert, aver, or declare (something).
- In full vouch to warrant or vouch to warranty: to summon (someone) into court to establish a warranty of title to land.
- Followed by over: of a vouchee (a person summoned to court to establish a warranty of title): to summon (someone) to court in their place.
- To guarantee legal title (to something).
- Often followed by for.; To bear witness or testify; to guarantee or sponsor.e.g.“I can vouch that he wasn’t at the scene of the crime.”
- Often followed by for.; To provide evidence or proof.
- Often followed by for.; To express confidence in or take responsibility for (the correctness or truth of) something.e.g.“Lives still such maid?—Fair damsels say,
For further vouches not my lay,
Save that such lived in Britain's isle,
Where Lorn's bright Edith scorn'd to smile.” — 1815, Walter Scott, “Canto First”, in The Lord of the Isles, a Poem, Edinburgh: […] [F]or Archibald Constable and Co. […]; London: Longman, Hurst, Rees, Orme, and Brown; by James Ballantyne and Co., [
Definitions & examples from Wiktionary (CC BY-SA 3.0).