attest
/əˈtɛst/
verb
- To declare or prove that something is true or genuine.
- The witness attested that she saw the defendant at the scene.
- The signature on the document was attested by a notary public.
- His excellent grades attest to his hard work.
- To serve as evidence of something.
- Her success attests the effectiveness of the training program.
- The empty streets attest the severity of the storm.
- The ruins attest to the city's ancient history.
Antonyms