Authentic and honest are synonyms of "genuine".
Genuine derives from "djinn".
In this recently released podcast episode, I cover the etymology of "djinn" amongst a number of other topics.
I talked about a lot of this with Daniel on episode 514 of Once Bitten so plenty of it may sound familiar.
In this episode though, I think I have offered my best articulation to date on serpent symbolism, kundalini, and enlightenment. Enjoy, my friend.