Where does “Russlanddeutscher” come from?

Russlanddeutscher (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.

Russlanddeutscher (German): Russia German, Russian German

Definitions

  1. Russia German, Russian German

Ancestry of “Russlanddeutscher”, step by step

Russlanddeutscher 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 Rußland

StepLanguageWordMeaning
1GermanRußland
2GermanrusseSwitzerland and Liechtenstein standard spelling...
3Old East SlavicРусьRus; Ruthenia
4FinnishruotsiSwedish
5Proto-Finnic*roocciSwede originally anyone from Roslagen
6Old Swedishroþs-related to rowing
7Old Norseróðrrowing
8Proto-Germanicrōþrąoar; rudder
9Proto-Indo-Europeanh₁reh₁-to row; to separate; loose, sparse, rare
Every word from Proto-Indo-European tewh₂-Every word from Proto-Indo-European tewtéh₂Every word from Proto-Germanic þeudō