Where does “Norddeutscher” come from?

Norddeutscher (German) comes from German Deutscher, from German deutsch, from Old High German tiusch, from Old High German diutisc, from Proto-West Germanic þiudisk, from Proto-Germanic þiudiskaz, from Proto-Germanic þeudō, from Proto-Indo-European tewtéh₂ — to swell; to crowd; to be strong.

Norddeutscher (German): a person who comes from or lives in Northern Germany male or of unspecified gender

Definitions

  1. a person who comes from or lives in Northern Germany male or of unspecified gender

Ancestry of “Norddeutscher”, step by step

Norddeutscher traces back through two separate lines of ancestry.

via German Deutscher

StepLanguageWordMeaning
1GermanDeutscherGerman; inflection of Deutsche: ## strong...
2GermandeutschGerman
3Old High Germantiusch
4Old High GermandiutiscAlternative form of diutisk; popular, vernacular;...
5Proto-West Germanicþiudiskof the people, popular, vernacular
6Proto-Germanicþiudiskazof the people, popular; of the tribe
7Proto-Germanicþeudōpeople, tribe
8Proto-Indo-Europeantewtéh₂people, tribe
9Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

via German nord

StepLanguageWordMeaning
1Germannordthe north (used without article; a short form of Norden)
2Middle High Germannort
3Old High Germannordnorth
4Proto-West Germanic*norþrnorthern, northernly
5Proto-Germanicnurþraznorth, northern
6Proto-Indo-European*nérbelow the surface, below
Every word from Proto-Indo-European tewh₂-Every word from Proto-Indo-European tewtéh₂Every word from Proto-Germanic þeudō