Where does “Dougal” come from?

Dougal is an English form of Scottish Gaelic Dubhgall, from Old Irish dubgall.

Ancestry of “Dougal”, step by step

StepLanguageWordMeaning
1Scottish GaelicDùghall—
2Scottish GaelicDùbhDec December
3Old Irishdubblack; morally dark, dire, gloomy, melancholy;...
4Proto-Celticdubusblack
5Proto-Indo-Europeandʰewbʰ-deep
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Indo-European dʰewbʰ- →Every word from Proto-Celtic dubus →