出典:Wiktionary
From Proto-West Germanic [Term?] and ultimately from Latin Italia (which itself was later borrowed into 古期英語 as Italia, a doublet of this term). It appears not to be an Anglo-Saxon-era borrowing, as it shows the marks of a lengthy chain of vowel changes that can only be explained by a native evolution from a much earlier borrowing predating the Middle Ages. This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.