Where does “Норвегия” come from?

Норвегия (Bashkir) comes from Russian Норве́гия, from Latin Norvegia, from Old Norse Norvegr, from Old Norse Norðvegr, from Old Norse norðr, from Proto-Germanic nurþrą, from Proto-Germanic nurþraz, from Proto-Indo-European *nér — below the surface, below.

Ancestry of “Норвегия”, step by step

StepLanguageWordMeaning
1RussianНорве́гия—
2LatinNorvegia—
3Old NorseNorvegrnorth way
4Old NorseNorðvegr—
5Old Norsenorðrnorth; north, northward
6Proto-Germanicnurþrąnorth, northern; north, northward
7Proto-Germanicnurþraznorth, northern
8Proto-Indo-European*nérbelow the surface, below
Every word from Proto-Indo-European *nér →Every word from Proto-Germanic nurþraz →Every word from Proto-Germanic nurþrą →