Where does “pětiúhelník” come from?

pětiúhelník (Czech) comes from Czech úhel, from Proto-Slavic ǫglь, from Proto-Balto-Slavic anˀglís, from Proto-Indo-European h₁óngʷl̥, from Proto-Indo-European h₁engʷ- — to burn; fire.

pětiúhelník (Czech): pentagon

Definitions

  1. pentagon

Ancestry of “pětiúhelník”, step by step

StepLanguageWordMeaning
1Czechúhelangle
2Proto-Slavicǫglьcoal
3Proto-Balto-Slavicanˀglíscoal, charcoal
4Proto-Indo-Europeanh₁óngʷl̥charcoal
5Proto-Indo-Europeanh₁engʷ-to burn; fire
Every word from Proto-Indo-European h₁engʷ- →Every word from Proto-Indo-European h₁óngʷl̥ →Every word from Proto-Balto-Slavic anˀglís →