Hmm. Well, this is rather stretching it, but... I was going to suggest Eurie / Eury, but then was reminded of "urine," which is not good. So how about Euria? I'm not sure how the Welsh name is pronounced, but for this nn you could pronounce it "YEUR-ee" or "YOO-ree" etc. I think it would be a lovely nickname for Eurydice.
I love Eurydice, by the way. :-)
-Camille
edited to add:
Eura is also pretty, if it's not too similar to "urine," again.
This message was edited 6/29/2008, 3:43 PM