Where does “Irland” come from?
Irland (Norwegian Bokmål) comes from Old Norse Írland, from Old Norse Írar, from Old Irish Ériu, from Primitive Irish *Īweriū, from Proto-Celtic Φīweryū, from Proto-Indo-European piHweryon-, from Proto-Indo-European peyH- — fat, milk.
Ancestry of “Irland”, step by step
Words derived from “Irland”