definition of
attest

[1] #1 attest v. [certify, manifest, demonstrate, evidence] provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; "His high fever attested to his illness"; "The buildings in Rome manifest a high level of architectural sophistication"; "This decision demonstrates his sen. wn

[2] #2 attest v. authenticate, affirm to be true, genuine, or correct, as in an official capacity; "I attest this signature". wn

[3] #3 attest v. [testify, take the stand, bear witness] give testimony in a court of law. wn

[4] #4 attest v. establish or verify the usage of; "This word is not attested until 1993". wn