Where does “آيرلنډ” come from?

آيرلنډ (Pashto) comes from English Ireland, from Middle English Irlond, from Old English Īrland, from Old English Īras, from Old Norse Írar, from Old Irish Ériu, from Primitive Irish *Īweriū, from Proto-Celtic Φīweryū — fat, milk.

آيرلنډ (Pashto): Ireland