attests

1. provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributesExamples: "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"Synonyms: attest, certify, demonstrate, evidence, manifest

2. authenticate, affirm to be true, genuine, or correct, as in an official capacityExamples: "I attest this signature"Synonyms: attest

3. give testimony in a court of lawSynonyms: attest, bear witness, take the stand, testify

4. establish or verify the usage ofExamples: "This word is not attested until 1993"Synonyms: attest