authenticate

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UK/ɒˈθɛn.tɪ.keɪt/US/ɔˈθɛn.tɪ.keɪt/cot caught merger/ɑˈθɛn.tɪ.keɪt/

verb

To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.

“The server could not authenticate the request.”

Similar
authentifyauthentic
OriginMedieval Latin authenticō →
Less commonScrabble 17
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Meanings

authenticate1

verbauthenticate (third-person singular simple present authenticates, present participle authenticating, simple past and past participle authenticated)

present singular third person authenticates · participle present authenticating · participle past authenticated · past authenticated

  1. transitiveTo render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.
  2. transitiveTo prove authentic; to determine as real and true.

    The server could not authenticate the request.

    1 more example

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

authenticate2

adjectiveauthenticate (comparative more authenticate, superlative most authenticate)

comparative more authenticate · superlative most authenticate

  1. Synonym of authentic.

    Synonyms: authentic

Synonyms & antonyms

adjectiveSynonym of authentic.

Similar
authentic
Similar
authentify

Origin

authenticate · verb

  1. Medieval Latinauthenticō
  2. Medieval Latinauthenticō
  3. Englishauthenticate

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

More words from Medieval Latin

Full word history & related roots →

authenticate · adjective

From authentic + -ate (adjective-forming suffix).

Full word history & related roots →

Translations

Bulgarian удостоверявам, установявам автентичността на
  • удостоверявам (udostoverjavam)to render authentic
  • установявам автентичността на (ustanovjavam avtentičnostta na)to render authentic
  • проверявам автентичността на (proverjavam avtentičnostta na)to prove authentic
Catalan autenticar, autenticar
  • autenticarto render authentic
  • autenticarto prove authentic
Danish autentificere
  • autentificereto prove authentic
Dutch authenticeren, authentificeren
  • authenticerento render authentic
  • authentificerento render authentic
  • authenticerento prove authentic
  • authentificerento prove authentic
Esperanto aŭtentigi
  • aŭtentigito prove authentic
Estonian tõendama, tõendama
  • tõendamato render authentic
  • tõendamato prove authentic
Finnish todentaa, todistaa oikeaksi
  • todentaato render authentic
  • todistaa oikeaksito render authentic
  • todentaato prove authentic
  • todistaa oikeaksito prove authentic
French authentifier
  • authentifierto prove authentic
German authentifizieren, ausweisen
  • authentifizierento render authentic
  • ausweisento render authentic
  • authentifizierento prove authentic
  • beglaubigento prove authentic
Hungarian hitelesít, eredetiséget megállapít
  • hitelesítto render authentic
  • eredetiséget megállapítto prove authentic
Latin authenticō, authentīzō
  • authenticōto prove authentic
  • authentīzōto prove authentic
Māori whakamotuhēhē, whakatūturu
  • whakamotuhēhēto render authentic
  • whakatūturuto render authentic
  • motuhēhēto render authentic
  • hāponoto render authentic
  • whakamotuhēhēto prove authentic
  • hāponoto prove authentic
Persian کیاجیدن
  • کیاجیدنto render authentic
Portuguese autenticar, autenticar
  • autenticarto render authentic
  • autenticarto prove authentic
Russian аутентифицировать, распознавать
  • аутентифицировать (autentificirovatʹ)to render authentic
  • распознавать (raspoznavatʹ)to prove authentic
Spanish autentificar, autenticar
  • autentificarto render authentic
  • autenticarto render authentic
  • autentificarto prove authentic
  • autenticarto prove authentic
Tagalog ipatotoo
  • ipatotooto render authentic
Yiddish אויטענטיקירן
  • אויטענטיקירן (oytentikirn)to prove authentic
Cite this entry
APA

authenticate. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/authenticate

MLA

“authenticate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/authenticate. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “authenticate,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/authenticate.

Source: authenticate on Wiktionary, CC BY-SA 4.0.