Approximately 10 years ago, the beginning of my computing days, I was looking for a cool AOL alias. (I am 18 now). I went searching through the dictionary and found the word Avarice. For some reason, maybe it was because I was young, I either read it as Arcenite or some how the word Arcenite came to my head. Maybe it was because I glanced at it as I was turning the page. Back in the day, it was cool to have all the Vowels lowercase and the other letters uppercase. Hence, aRCeNiTe was born. I have been using it as my Gaming Name/Login Name/Everything except AOL Instant Messanger Name (even though it was my screen name for a few years) till this day. Ahh, good ol' aRCeNiTe.
Bill
P.S. I pronounce it, (Are-Seh-Night)