For anyone wondering, Deutschland, Duitsland and Tyskland all have the same latin root "theodiscus" that became "deutsch". "Allemagne" derives from a germanic tribe, the "Alemanni" who lived in modern day Germany and bordered modern day france. Niemcy and Nemetorszag both stem from old slavic "nem" (or something similar) meaning "mute". They called the Germanic tribes they interacted with mute because they couldn't understand them. "Saksa" is derived from the German region "Saxony".

Please correct me in case i got something wrong.

[–] Successful_Try543@feddit.org 2 points 10 months ago

The Latin root theodiscus is actually just the latinised form of the Old High German thiutisk from Indo-European teuta and means "people". Similarly, Alemanni means "all men". The Saxons were named after their typical sword or fighting knive, the Seax or Sax. It's still discussed where the term "German" originates from.

[–] modeler@lemmy.world 1 points 10 months ago

Just to add one more sidenote: France is of course named after the Franks, a German people who lived next door to the Alemanni and the Saxons.