DictionaryattestConfirming truth
verb

attest

uh-TEST/əˈtest/

To confirm or serve as evidence that something is true.

The museum expert attests to the antique object's authenticity after checking its record.

Black museum expert verifies antique object authenticity beside record.
Etymology

The pieces express “bear witness to.” Attesting that something is true or genuine treats confirmation as testimony: a witness or evidence supplies support for accepting the claim.

In context

Enhanced Public Domain151:33
a look of sorrowful affection seemed to attest her utter guiltlessness
1800s Fiction Audiobook: Mary Shelley - Frankenstein

More examples

  • The surviving letters attest to her influence on the movement.
  • A notary attested the signature on the document.
  • The marks on the floor attest to years of heavy use.

Forms

attest · attests · attested · attesting

attestation noun — A formal confirmation or statement of evidence.

Similar words

confirm
Establishes or supports correctness without necessarily bearing formal witness.
certify
Usually means formally declaring that a requirement or fact is established.