Latin authenticus

← Ancient Greek αὐθεντικός (borrowed)

→ English authentic (derived)

→ Catalan autèntic (derived)

→ Czech autentický (derived)

→ French authentique (derived)

→ Hungarian autentikus (borrowed)

→ Indonesian autentik (derived)

→ Italian autentico (derived)

→ Dutch authentiek (derived)

→ Occitan autentic (derived)

→ Polish autentyk (borrowed)

→ Romanian autentic (derived)

→ Russian автентичен (borrowed(ru/bg))

→ Swedish autentisk (derived)

→ Turkish otantik (derived)