Where does “čtyří” come from?

čtyří (Czech) comes from Old Czech čtyřie, from Proto-Slavic četyre, from Proto-Balto-Slavic ketures, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

čtyří (Czech): four

Definitions

  1. four

Ancestry of “čtyří”, step by step

StepLanguageWordMeaning
1Old Czechčtyřiefour
2Proto-Slavicčetyrefour
3Proto-Balto-Slavicketuresfour
4Proto-Indo-Europeankʷetwóresfour
5Proto-Indo-Europeankʷe-and
Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Balto-Slavic ketures →