Where does “Ai-len” come from?
Ai-len (Vietnamese) 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.
Ai-len (Vietnamese): Ireland
Ancestry of “Ai-len”, step by step