Where does “nordkoreanisch” come from?

nordkoreanisch (German) comes from Swedish Nordkorea, from German nord, from Middle High German nort, from Old High German nord, from Proto-West Germanic *norþr, from Proto-Germanic nurþraz, from Proto-Indo-European *nér — below the surface, below.

Ancestry of “nordkoreanisch”, step by step

StepLanguageWordMeaning
1SwedishNordkorea—
2Germannordthe north (used without article; a short form of Norden)
3Middle High Germannort—
4Old High Germannordnorth
5Proto-West Germanic*norþrnorthern, northernly
6Proto-Germanicnurþraznorth, northern
7Proto-Indo-European*nérbelow the surface, below
Every word from Proto-Indo-European *nér →Every word from Proto-Germanic nurþraz →Every word from Proto-West Germanic *norþr →