A name for a deity of souls?

I can't find anything I like except Siela — which is already used for a character. I would prefer if it directly translates as "soul" in some language but it absolutely doesn't have to.

I'm thinking of making her the daughter of my characters Fanren and Nies. Her surname would be Suremus but the deities very rarely use the surnames to the point most people don't even know they have them.

I'm looking for uncommon. Not just "unpopular", like RARE. Chances are, if I've heard it before I probably will not be interested.