If Constantinople is called Miklagard by the Norse, then what does the various Germanic languages (Norse, Swedish, Norwegian, Danish, German, Lombard, Suebi, English, Anglo-Saxon, Saxon, Frisian, Dutch, Visigothic and Ashkenazi (I know that Ashkenazi is not a German language and that their language is Yiddish. But, I am talking about German Ashkenazis)) call "Rome", "Italy" and the "Roman Empire"?
Hello, I can only comment on Gothic. Much of what we know about the Gothic language comes from a translation of the bible by the monk Wulfila, though there are other varying small pieces and fragments.
There are a few verses which mention Rome, and we see it here, in 2 Timothy 1:17, that Rome is rendered as "Ruma" or in the Gothic alphabet proper "ππΏπΌπ°". No verses mentioning Italy have been found as far as I am aware.
Is this a historical question? Are you asking about a particular period of time? Several of these languages did not exist contemporaneously, like English and Visigothic.