Where does “бъдръ” come from?

бъдръ (Old East Slavic) comes from Proto-Slavic bъ̀drъ, from Proto-Balto-Slavic budras, from Proto-Indo-European bʰudʰros, from Proto-Indo-European bʰewdʰ- — to be awake, be aware.

Ancestry of “бъдръ”, step by step

StepLanguageWordMeaning
1Proto-Slavicbъ̀drъalert, cheerful
2Proto-Balto-Slavicbudras—
3Proto-Indo-Europeanbʰudʰrosalert, aware
4Proto-Indo-Europeanbʰewdʰ-to be awake, be aware

Words derived from “бъдръ”

Every word from Proto-Indo-European bʰewdʰ- →Every word from Proto-Indo-European bʰudʰros →Every word from Proto-Balto-Slavic budras →