Where does “быльё” come from?

быльё (Russian) comes from Proto-Slavic bylьje, from Proto-Slavic byti, from Proto-Balto-Slavic bū́ˀtei, from Proto-Indo-European bʰuH- — to become, grow, appear.

быльё (Russian): grass

Definitions

  1. grass

Ancestry of “быльё”, step by step

StepLanguageWordMeaning
1Proto-Slavicbylьjeherb; medicine
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 →