Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Ancient Greek αὐθεντικός
Ancient Greek αὐθέντης (suffix)
Ancient Greek ικός (suffix)

English authentic (derived)
Catalan autèntic (derived)
German authentisch (derived)
Greek αυθεντικός (inherited)
Greek αφεντικό (inherited)
Spanish auténtico (derived)
French authentique (derived)
Galician auténtico (derived)
Hungarian autentikus (derived)
Indonesian autentik (derived)
Italian autentico (derived)
Latin автентичен (borrowed(la/bg))
Latin authenticus (borrowed)
Norwegian Bokmål autentisk (derived)
Dutch authentiek (derived)
Norwegian Nynorsk autentisk (derived)
Occitan autentic (derived)
Polish autentyk (derived)
Portuguese autêntico (derived)
Swedish autentisk (derived)
Turkish otantik (derived)