Where does “Bühnendeutsch” come from?

Bühnendeutsch (German) comes from German Deutsch, from Old High German diutsch, from Old High German diutisc, from Proto-West Germanic þiudisk, from Proto-Germanic þiudiskaz, from Proto-Germanic þeudō, from Proto-Indo-European tewtéh₂, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

Bühnendeutsch (German): a unified, transregional pronunciation for German-language theatre productions codified in the late 19th century

Definitions

  1. a unified, transregional pronunciation for German-language theatre productions codified in the late 19th century

Ancestry of “Bühnendeutsch”, step by step

Bühnendeutsch traces back through two separate lines of ancestry.

via German Deutsch

StepLanguageWordMeaning
1GermanDeutschGerman
2Old High Germandiutsch
3Old High GermandiutiscAlternative form of diutisk; popular, vernacular;...
4Proto-West Germanicþiudiskof the people, popular, vernacular
5Proto-Germanicþiudiskazof the people, popular; of the tribe
6Proto-Germanicþeudōpeople, tribe
7Proto-Indo-Europeantewtéh₂people, tribe
8Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

via German Bühne

StepLanguageWordMeaning
1GermanBühnea stage; a scaffolding
2Middle High Germanbünestage; scaffolding
3Proto-Germanicbunī
4Proto-Germanicbutmazbottom; foundation; ground; abyss
5Proto-Indo-Europeanbʰudʰmḗnbottom
6Proto-Indo-Europeandʰewbʰ-deep
7Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European tewh₂-Every word from Proto-Indo-European tewtéh₂Every word from Proto-Germanic þeudō