Eira is the welsh word for snow, which is pronounced Ay-rah, but I think it's also used in Scandinavia and they would say Eye-rah. Either way, very pretty for a winter baby.
Also like Awen, (welsh for inspiration), Erin, Seren (welsh for star), Rosanna, Fleur, Annabel, Dawn, Tabitha, Wren, and Posy.