Where does “Dubhghus” come from?

Dubhghus (Irish) comes from Irish dubh, from Old Irish dub, from Proto-Celtic dubus, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Ancestry of “Dubhghus”, step by step

Dubhghus traces back through two separate lines of ancestry.

via Irish dubh

StepLanguageWordMeaning
1Irishdubhblack; black-haired
2Old Irishdubblack; morally dark, dire, gloomy, melancholy;...
3Proto-Celticdubusblack
4Proto-Indo-Europeandʰewbʰ-deep
5Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via Proto-Indo-European gus-

StepLanguageWordMeaning
1Proto-Indo-Europeangus-—
2Proto-Indo-Europeanǵews-to taste, try
Every word from Proto-Indo-European dʰewh₂- →