Where does “bystřina” come from?

bystřina (Czech) comes from Czech bystrý, from Old Czech bystrý, from Proto-Slavic bystrъ, from Proto-Indo-European bʰūsro-.

bystřina (Czech): stream, brook, rivulet

Definitions

  1. stream, brook, rivulet

Ancestry of “bystřina”, step by step

StepLanguageWordMeaning
1Czechbystrýquick, alert, perceptive
2Old Czechbystrý—
3Proto-Slavicbystrъquick; penetrating, transparent
4Proto-Indo-Europeanbʰūsro-—
Every word from Proto-Indo-European bʰūsro- →Every word from Proto-Slavic bystrъ →Every word from Old Czech bystrý →