Main Entry:

at·test

Pronunciation:

\ə-ˈtest\

Function:

verb

Etymology:

Middle French attester, from Latin attestari, from ad- + testis witness — more at testament

Date:

circa 1500

transitive verb1 a: to affirm to be true or genuine ; specifically : to authenticate by signing as a witness b: to authenticate officially2: to establish or verify the usage of3: to be proof of : manifest <her record attests her integrity>4: to put on oathintransitive verb: to bear witness : testify <attest to a belief>

synonyms see certify

— at·tes·ta·tion \ˌa-ˌtes-ˈtā-shən, ˌa-tə-ˈstā-\ noun

— at·test·er \ə-ˈtes-tər\ noun