attested; attesting; attests
Definition of attest
1a
: to affirm to be true or genuine
specifically
: to authenticate by signing as a witness
b
: to authenticate officially
2
: to establish or verify the usage of
a word that was first attested in the 18th century
3
: to be proof of : manifest
Her record attests her integrity.
4
: to put on oath
: to show, prove, or state that something is true or real
—usually used with to I can attest to the truth of his statement.attest to a belief
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Merriam-Webster unabridged
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Time Traveler for attest
The first known use of attest was circa 1500
See more words from the same year