Where does “*Īweriū” come from?

*Īweriū (Primitive Irish) comes from Proto-Celtic Φīweryū, from Proto-Indo-European piHweryon-, from Proto-Indo-European peyH- — fat, milk.

Ancestry of “*Īweriū”, step by step

Step	Language	Word	Meaning
1	Proto-Celtic	Φīweryū	—
2	Proto-Indo-European	piHweryon-	—
3	Proto-Indo-European	peyH-	fat, milk

*Īweriū — Etymology, Origin & Word History | Etymology Explorer