vouch

Etymology

It is inherited from Middle English vouchen, also vochen,^[2][3][4] borrowed from Anglo-Norman voucher and Old French vocher (“to call, summon, invoke, claim”).^[5][6][4][7] The French verb is usually explained as from Vulgar Latin *voticō,^[7][6][4][8] a metathesis of Latin vocitō (“to call insistently”), the frequentative of vocō (“to call”),^[4][6][7] from vōx (“voice”),^[6][3][2] from Proto-Indo-European *wekʷ- (“to speak”);^[6][7] Barnhart compares perche from pertica for the sound change.^[4] The OED says only that it represents the Latin verb obscurely,^[5][9] and Dictionary.com derives it from avochier, from advocō.^[10] The Anglo-Norman verb is recorded from the early 12th century, with senses from "to call, invoke" to "vouch to warranty".^[11] Weekley thought vouch was more usually short for avouch.^[8]

Earliest recorded meaning

As a legal term, to summon a person into court to give warranty of a title, in the phrase vouch to warrant or to warranty: before 1325, in the Statutes of the Realm.^[5][4][6]

Semantic evolution

From the law court the verb spread to calling a person as witness (about 1412, in Hoccleve)^[5] and to citing an authority, an example or a passage in support of what one says (1531).^[5][12] By the late 14th century, in Gower, it also meant to declare or assert, a sense now obsolete.^[5][6] The meaning "to support with proof or evidence" is from the 1570s,^[6] and "to guarantee as true" from the 1590s;^[6] Barnhart dates it to 1591.^[4] Ayto puts the sense "guarantee" in the 16th century,^[12] and Hoad dates "be surety or witness for" to the 17th.^[9] Johnson (1755) still gave "to call to witness" as the first sense.^[13] The noun vouch, an assertion or attestation, is from 1610, and Shakespeare used it in Othello.^[5][13] The Anglo-Norman infinitive used as a noun gave voucher (1531), at first the summoning of a person into court; its sense "receipt" is from 1696.^[4][12]

Timeline

• before 1325 – law, to summon a person into court to give warranty of a title.^[5][4]
• 1390 – to allege, assert, declare (now obsolete).^[5][6]
• c. 1412 – to call a person to witness.^[5]
• 1531 – to cite an authority or example in support.^[5]
• 1570s – to support with proof or evidence.^[6]
• 1591 – to guarantee as true or accurate.^[4]
• 1610 – noun, an assertion or attestation.^[5]

Meanings

Verb

1. vouch for: to give one's personal assurance about someone or something; to guarantee: I can vouch for her honesty.^[14][2]
2. To provide supporting evidence for something, or serve as proof of it.^[14][2]
3. (law, historical) To summon a person into court to defend a title to land.^[14][2][5]
4. (archaic) To cite authors or principles in support of something.^[14][5]
5. (obsolete) To assert or declare.^[14][5]

Related words

• avouch
• avouchment
• vouchsafe
• voucher
• voice
• vocation
• advocate
• vocative

References

1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
3. ^ a b Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
4. ^ a b c d e f g h i j Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
5. ^ a b c d e f g h i j k l m n o Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
6. ^ a b c d e f g h i j k Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
7. ^ a b c d The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
8. ^ a b Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
9. ^ a b Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
10. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
11. ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
12. ^ a b c Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
13. ^ a b Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
14. ^ a b c d e Collins English Dictionary (2023), Glasgow: HarperCollins