Where does “бездонный” come from?

бездонный (Russian) comes from Russian дно, from Old East Slavic дъно, from Proto-Slavic dъno, from Proto-Indo-European *dʰewb-.

бездонный (Russian): bottomless

Definitions

  1. bottomless

Ancestry of “бездонный”, step by step

StepLanguageWordMeaning
1Russianдноfloor, bed; bottom surface of a container; bottom...
2Old East Slavicдъно—
3Proto-Slavicdъnobottom
4Proto-Indo-European*dʰewb-—
Every word from Proto-Indo-European *dʰewb- →Every word from Proto-Slavic dъno →Every word from Old East Slavic дъно →