Where does “dwuścian” come from?

dwuścian (Polish) comes from Polish dwa, from Old Polish dwa, from Proto-Slavic dъva, from Proto-Balto-Slavic duwō, from Proto-Indo-European dwóh₁ — two.

dwuścian (Polish): dihedron

Definitions

  1. dihedron

Ancestry of “dwuścian”, step by step

dwuścian traces back through two separate lines of ancestry.

via Polish dwa

StepLanguageWordMeaning
1Polishdwatwo
2Old Polishdwatwo
3Proto-Slavicdъvatwo
4Proto-Balto-Slavicduwōtwo
5Proto-Indo-Europeandwóh₁two

via Polish ściana

StepLanguageWordMeaning
1Polishścianawall
2Proto-Slavic*stěnàconglomeration (of stones)
Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Balto-Slavic duwō →Every word from Proto-Slavic dъva →