adjective/auˈtentiko/
authentic, real, true (conforming to reality and therefore worthy of trust)
Synonyms: real, cierto, verdadero, legítimo, genuino
Antonyms: inauténtico, ilegítimo
Related: auténticamente, autenticidad, autentificar, inauténtico
Borrowed 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”).