Ireland
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wiktionary
From Middle English Ireland, Irelond, Irlond, Irland, from Old English Īr- as in Īras ("Irishmen") + land, lond. Perhaps also from Middle Irish Éire + -land. Ultimately from Old Irish Ériu(“Ireland”). See Irish.
etymonline
Ireland
12c. in Anglo-Norman, a Germanic-Celtic hybrid, with land (n.) + Celtic Eriu (see Irish (n.)).