Aradia, Eira or Cordelia?

I love norse, celtic, and welsh names. I've been tumbling through names searching for the right one! I love River but my best friend has a River so I wouldn't feel comfortable using it. At the moment my top alternatives are Aradia, Eira or Cordelia.

I'm set on Jayne as a middle name for sentimental reasons and I think they all have a nice ring to them.

I'm not sure about nicknames for Aradia or Eira, but I love Cora for Cordelia.

I'd love some input! Or if you have any other suggestions for witchy names with historic origins that flow well with Jayne.

Thank you!