attest

Reading level: hard

Estimated CEFR level: C1 — Advanced

Estimated from word frequency; not an official CEFR classification.

Definition

  1. verb provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
  2. verb authenticate, affirm to be true, genuine, or correct, as in an official capacity
  3. verb give testimony in a court of law

Etymology

PIE word *tréyes Borrowed from Middle French attester, from Latin attestor (“to witness to, bear witness”), from at-, combining form of ad (“to”) + testor (“to bear witness”), from testis (“a witness”).

In classic literature

Synonyms

certify, manifest, demonstrate, evidence

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