At·test v. t. [imp. & p. p. Attested; p. pr. & vb. n. Attesting.]
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. [Archaic]
The sacred streams which Heaven's imperial state
Attests in oaths, and fears to violate. --Dryden.