Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English authentic
Middle English authentik (inherited)
Old French autentique (derived)
Ancient Greek αὐθεντικός (derived)
Ancient Greek αὐθέντης (derived)
Latin authenticus (derived)

English real (link)
English real (link)
English author (mention)
English inauthentic (prefix)
English authenticity (suffix)
English authentical (suffix)
English authentically (suffix)
English authenticate (suffix)
English authenticly (suffix)
English authenticness (suffix)
English unauthentic (prefix)
English authenticist (suffix)
English nonauthentic (prefix)
English hyperauthentic (prefix)
English superauthentic (prefix)
English authenticism (suffix)
English authenticize (suffix)
English non-authentic (affix)
Swedish autentisk (cognate)