Where does “Макдоналд” come from?

Макдоналд (Russian) comes from English Macdonald, from English Donald, from Scottish Gaelic Dòmhnall, from Old Irish Domnall, from Proto-Celtic Dubnowalos, from Proto-Celtic dubnos, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Ancestry of “Макдоналд”, step by step

StepLanguageWordMeaning
1EnglishMacdonaldan
2EnglishDonaldA place name
3Scottish GaelicDòmhnall
4Old IrishDomnall
5Proto-CelticDubnowalosprince/chief of the world; prince / chief of the...
6Proto-Celticdubnosdeep; world
7Proto-Indo-Europeandʰewbʰ-deep
8Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European dʰewh₂-