Where does “dъbno” come from?

dъbno (Proto-Slavic) comes from Proto-Balto-Slavic dubna, from Proto-Indo-European dʰubʰnós, from Proto-Indo-European dʰewb- — deep, hollow; depths, hollow, deep, bottom.

Ancestry of “dъbno”, step by step

StepLanguageWordMeaning
1Proto-Balto-Slavicdubna—
2Proto-Indo-Europeandʰubʰnósdeep
3Proto-Indo-Europeandʰewb-deep, hollow; depths, hollow, deep, bottom
Every word from Proto-Indo-European dʰewb- →Every word from Proto-Indo-European dʰubʰnós →Every word from Proto-Balto-Slavic dubna →
dъbno — Etymology, Origin & Word History | Etymology Explorer