At″test″ (�), v. t. [imp. & p. p.Attested; p. pr. & vb. n.Attesting.] [L. attestari; ad + testari to bear witness: cf. F. attester.] 1. To bear witness to; to certify; to affirm to be true or genuine; as, to attest the truth of a writing, a copy of record.
Facts... attested by particular pagan authors.
Addison.
2. To give proof of; to manifest; as, the ruins of Palmyra attest its ancient magnificence.
3. To call to witness; to invoke.
The sacred streams which Heaven's imperial state
Attests in oaths, and fears to violate.
Dryden.