Where does “čtyřboj” come from?

čtyřboj (Czech) comes from Czech boj, from Old Czech boj, from Proto-Slavic bojь, from Proto-Indo-European bʰoyh₂ós, from Proto-Indo-European bʰeyh₂- — to fear, be afraid; to strike, hit; to hew, cut.

čtyřboj (Czech): event in which contestants compete in four different sports

Definitions

  1. event in which contestants compete in four different sports

Ancestry of “čtyřboj”, step by step

čtyřboj traces back through two separate lines of ancestry.

via Czech boj

StepLanguageWordMeaning
1Czechbojfight; second-person singular imperative of bát
2Old Czechbojfight
3Proto-Slavicbojьbattle, fight
4Proto-Indo-Europeanbʰoyh₂ós—
5Proto-Indo-Europeanbʰeyh₂-to fear, be afraid; to strike, hit; to hew, cut

via Czech čtyř

StepLanguageWordMeaning
1Czechčtyř—
Every word from Proto-Indo-European bʰeyh₂- →Every word from Proto-Indo-European bʰoyh₂ós →Every word from Proto-Slavic bojь →