Where does “плоскогорье” come from?

плоскогорье (Russian) comes from Russian гора́, from Proto-Slavic gorà, from Proto-Balto-Slavic garā́ˀ, from Proto-Indo-European gʷerH- — to express approval; praise; to elevate.

плоскогорье (Russian): plateau, tableland

Definitions

  1. plateau, tableland

Ancestry of “плоскогорье”, step by step

плоскогорье traces back through two separate lines of ancestry.

via Russian гора́

StepLanguageWordMeaning
1Russianгора́mountain, heap
2Proto-Slavicgoràmountain
3Proto-Balto-Slavicgarā́ˀmountain
4Proto-Indo-EuropeangʷerH-to express approval; praise; to elevate

via Russian пло́ский

StepLanguageWordMeaning
1Russianпло́скийflat, plane, level
Every word from Proto-Indo-European gʷerH- →Every word from Proto-Balto-Slavic garā́ˀ →Every word from Proto-Slavic gorà →