AskDefine | Define attest

Dictionary Definition



1 provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; "His high fever attested to his illness"; "The buildings in Rome manifest a high level of architectural sophistication"; "This decision demonstrates his sense of fairness" [syn: certify, manifest, demonstrate, evidence]
2 authenticate, affirm to be true, genuine, or correct, as in an official capacity; "I attest this signature"
3 give testimony in a court of law [syn: testify, take the stand, bear witness]
4 establish or verify the usage of; "This word is not attested until 1993"

User Contributed Dictionary



From lang=la



  1. To affirm to be correct, true, or genuine.
    When will the appraiser attest the date of the painting?
  2. To certify by signature or oath
    You must attest your will in order for it to be valid.
  3. To certify in an official capacity.
  4. To supply or be evidence of
    Will her fine work attest her ability.
  5. To put under oath.


* 1599 — Shakespeare, Henry V iii 1 (Act ii in First Folio edition)
  • Dishonour not your Mothers: now attest that those whom you call'd Fathers, did beget you.
  • 1599 — Shakespeare, Henry V Prologue (First Folio edition)
    O pardon : since a crooked Figure may
    Attest in little place a Million,
    And let us, Cyphers to this great Accompt,
    On your imaginarie Forces worke.


to affirm to be correct, true, or genuine

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Related terms

Synonyms, Antonyms and Related Words

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