Where does “Irishphobia” come from?

Irishphobia (English) comes from English Irish, from Middle English Irisce, from Old English Īras, from Old Norse Írar, from Old Irish Ériu, from Primitive Irish *Īweriū, from Proto-Celtic Φīweryū, from Proto-Indo-European piHweryon- — fat, milk.

Ancestry of “Irishphobia”, step by step

Step	Language	Word	Meaning
1	English	Irish	The Goidelic language indigenous to Ireland, also...
2	Middle English	Irisce	—
3	Old English	Īras	Irishmen
4	Old Norse	Írar	Irishmen
5	Old Irish	Ériu	Ireland
6	Primitive Irish	*Īweriū	—
7	Proto-Celtic	Φīweryū	—
8	Proto-Indo-European	piHweryon-	—
9	Proto-Indo-European	peyH-	fat, milk

Every word from Proto-Indo-European peyH- →