Where does “nonauthentic” come from?

nonauthentic (English) comes from English authentic, from Middle English authentik, from Old French autentique, from Latin authenticus, from Ancient Greek αὐθεντικός, from Ancient Greek αὐθέντης, from Ancient Greek αὐτο-, from Ancient Greek αὐτός — Postpositional intensifying particle: indeed, at any rate, in fact.

nonauthentic (English): Not authentic

Definitions

  1. Not authentic

Ancestry of “nonauthentic”, step by step

nonauthentic traces back through two separate lines of ancestry.

via English authentic

StepLanguageWordMeaning
1EnglishauthenticOf the same origin as claimed; genuine;...
2Middle Englishauthentik
3Old Frenchautentique
4Latinauthenticusoriginal, genuine, authentic
5Ancient Greekαὐθεντικόςwarranted, authentic, authoritative
6Ancient Greekαὐθέντηςa perpetrator of any act, especially that he...
7Ancient Greekαὐτο-self-
8Ancient Greekαὐτόςαὐτή f, αὐτό n; "first/second declension";...
9Proto-Indo-Europeanh₂ewaway from, off; again
10Proto-Indo-EuropeanǵʰePostpositional intensifying particle: indeed, at any rate, in fact

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum
6Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European ǵʰe