Etymology

From Medieval Latin authenticus, from Ancient Greek αὐθεντικός ‎(authentikós, “original, genuine, principal”), from αὐθέντης ‎(authéntēs, “one acting by his own authority, perpetrator, ruler”), from αὐτός ‎(autós, “self”).

Pronunciation

• IPA^(key): /au.ˈten.ti.ko/