(transitive) To affirm to be correct, true, or genuine. / (transitive) To certify by signature or oath. / (transitive) To certify in an official capacity.

A thing that serves to bear witness, confirm, or authenticate; validation, verification, documentation. / A confirmation or authentication.

Third-person singular simple present indicative form of attest

present participle of attest

plural of attestation

attestation

plural of attestment

Supported by a great deal of evidence. / (linguistics) Of words or languages, proven to exist through a large number of examples or copious records.

In a way that has been attested; confirmedly.