Nox Nexus, Roman Gladiator and alchemist to the stars!
As far as I can recall, I simply made it up. I have used plenty of different names starting with the letter N (which I like the feel of), and they all seem to develop on from the previous. It was also influenced by the poisonous feeling word "nox".
How did you come up with your screen name? It is cool, i don't know exactly why, but it is pretty cool.
Separate names with a comma.