Russian дно

← Proto-Balto-Slavic *dubnas (inherited)

← Proto-Indo-European *dʰewb- (root)

← Proto-Indo-European *dʰubnos (inherited)

← Proto-Indo-European *dʰewb- (mention)

← Old East Slavic дъно (inherited)

← Proto-Slavic *dъno (inherited)

→ Russian бездна (prefix)

→ Russian Сухона (mention)

→ Russian бездонный (affix)

→ Russian поддон (prefix)

→ Russian днище (affix)

→ Russian донышко (affix)

→ Russian подонок (affix)

→ Russian донный (affix)