Where does “být” come from?

být (Czech) comes from Old Czech býti, from Proto-Slavic *byti, from Proto-Balto-Slavic bū́ˀtei, from Proto-Indo-European bʰuH- — to become, grow, appear.

být (Czech): to be; Jel jsem do Prahy. ― I went to Prague;...

Definitions

  1. to be; Jel jsem do Prahy. ― I went to Prague;...

Ancestry of “být”, step by step

být traces back through 3 separate lines of ancestry.

via Old Czech býti

StepLanguageWordMeaning
1Old Czechbýtito be
2Proto-Slavic*byti—
3Proto-Balto-Slavicbū́ˀteito be
4Proto-Indo-EuropeanbʰuH-to become, grow, appear

via Proto-Slavic byti

StepLanguageWordMeaning
1Proto-Slavicbytito be
2Proto-Balto-Slavicbū́tei—

via Old Czech byť

StepLanguageWordMeaning
1Old Czechbyťexistence
2Proto-Slavicbytъ—

Words derived from “být”

Every word from Proto-Indo-European bʰuH- →Every word from Proto-Balto-Slavic bū́ˀtei →Every word from Proto-Slavic *byti →