Where does “Doubs” come from?

Doubs (French) comes from Proto-Celtic dubus, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Ancestry of “Doubs”, step by step

Doubs traces back through two separate lines of ancestry.

via Proto-Celtic dubus

StepLanguageWordMeaning
1Proto-Celticdubusblack
2Proto-Indo-Europeandʰewbʰ-deep
3Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via Gaulish Dubis

StepLanguageWordMeaning
1GaulishDubis—

Words derived from “Doubs”

Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Indo-European dʰewbʰ- →Every word from Proto-Celtic dubus →