Third-person singular present tense of attest; confirms or proves something is genuine, true, or authentic through evidence or testimony.
From Latin attestari (to bear witness to, make evidence of), combining ad- (to) + testari (to testify, from testis meaning witness).
The phrase 'facts attest to' is powerful in writing—it means the facts themselves are witnesses standing up in court for your argument, which is why lawyers and scientists love using it.
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