Where does “dourgon” come from?

dourgon (Breton) comes from Breton dour, from Proto-Brythonic duβr, from Proto-Celtic dubros, from Proto-Indo-European dʰubʰrós, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Definitions

Ancestry of “dourgon”, step by step

dourgon traces back through two separate lines of ancestry.

via Breton dour

StepLanguageWordMeaning
1Bretondourwater; rain, tears, sweat, saliva
2Proto-Brythonicduβrwater
3Proto-Celticdubrosdark; water
4Proto-Indo-Europeandʰubʰrósdeep
5Proto-Indo-Europeandʰewbʰ-deep
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via Breton kon

StepLanguageWordMeaning
1Bretonkon
Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Indo-European dʰewbʰ- →Every word from Proto-Indo-European dʰubʰrós →