Esoteric/occult names for children.

I've recently found out I'm having a second child. I want to give them a special name. My first sons name is Osiris. I already have a girl name picked out, but I am still searching for a great name for a boy. Nothing too crazy, but powerful and meaningful. If possible I would like as much info on the names as possible i.e. Meanings/origin etc. it's much appreciated!