Since Erudil's visits here are brief and few, I'll answer for the meaning behind his name. It comes from JRR Tolkien's languages in "Lord of the Rings", and is Quenya for "servant (-(n)dil) of God (Eru)".
in reply to Name Space
My own nick stems from "JAPH", in lowercase. I chose it when I was 17, and since there are people greater than myself who deserve the name "japh", I chose "japhy", to convey the sense of a young'un (which is what the "y" stands for). I won't be young forever, but I think I'll stick with this nick.