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Authenticate

//ɒˈθɛn.tɪ.keɪt// adj, verb

Definitions

Adjective
  1. 1
    Synonym of authentic.
Verb
  1. 1
    To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit. transitive
  2. 2
    establish the authenticity of something wordnet
  3. 3
    To prove authentic; to determine as real and true. transitive

    "He didn’t manage to authenticate the portrait: it’s probably a fake."

Etymology

Etymology 1

From Medieval Latin authenticō. By surface analysis, authentic + -ate (verb-forming suffix).

Etymology 2

From authentic + -ate (adjective-forming suffix)

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