I'm such a skeptic. Not sure if "Niefes" and "Atilla the Hun" and "nobody" are the same poster here under different names, but I have suspicions. If so, that was very clever and it made the dialogue engaging.

Anyhow, I've come to this thread searching for questions on etymology of sin.

I came to most of the same conclusions a while back when I tried my own interpretations of the etchings on the reverse side of the first pylon at the temple of Isis.
My search started when I saw something nobody else could verify. I have many unique and controversial questions it appears and post them on quora quite often lately.

If you wish to follow this idea of sin or my other controversial inquiries you can find it here:

https://www.quora.com/Is-it-likely-an-etymoligist-got-sinner-wrong-maybe-purposely-and-it-actually-came-from-the-fact-Sins-worship-took-place-in-Ur-in-the-South-of-Mesopotamia-and-competing-religions-just-adopted-the-word-sin-or-sinner