Where does “siedmiościan” come from?

siedmiościan (Polish) comes from Polish siedem, from Old Polish siedm, from Proto-Slavic sedmь, from Proto-Indo-European septḿ̥ — seven.

siedmiościan (Polish): heptahedron

Definitions

  1. heptahedron

Ancestry of “siedmiościan”, step by step

siedmiościan traces back through two separate lines of ancestry.

via Polish siedem

StepLanguageWordMeaning
1Polishsiedemseven
2Old Polishsiedmseven
3Proto-Slavicsedmьseven
4Proto-Indo-Europeanseptḿ̥seven

via Polish ściana

StepLanguageWordMeaning
1Polishścianawall
2Proto-Slavic*stěnàconglomeration (of stones)
Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Slavic sedmь →Every word from Old Polish siedm →