Not something I thought of a lot when I was back in US since USA is… a pretty bureaucratic name by all means. But I just realized that some countries have really fascinating names in their local language
Like how China names itself Central/Middle country in a very grandiose way (as in, we are the center of the world), or Japan being “land of the rising sun”
Bavaria / Bayern. Comes from the baiuvari germanic tribe that used to be here.
Schwaben/ Swabia comes from the Suebi a germanic tribe
Saxony/ Sachsen - germanic tribe