Where does “byće” come from?

byće (Upper Sorbian) comes from Upper Sorbian być, from Proto-Slavic byti, from Proto-Balto-Slavic bū́ˀtei, from Proto-Indo-European bʰuH- — to become, grow, appear.

Ancestry of “byće”, step by step

StepLanguageWordMeaning
1Upper Sorbianbyćto be
2Proto-Slavicbytito be
3Proto-Balto-Slavicbū́ˀteito be
4Proto-Indo-EuropeanbʰuH-to become, grow, appear
Every word from Proto-Indo-European bʰuH- →Every word from Proto-Balto-Slavic bū́ˀtei →Every word from Proto-Slavic byti →