Where does “Dunnett” come from?

Dunnett (English) comes from Old English dūn, from Proto-Germanic *dūnā, from Proto-Celtic dūnom, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Ancestry of “Dunnett”, step by step

Dunnett traces back through two separate lines of ancestry.

via Old English dūn

StepLanguageWordMeaning
1Old Englishdūnhill, down; hill, dune; hill, mountain
2Proto-Germanic*dūnā—
3Proto-Celticdūnomstronghold, rampart
4Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via Scottish Gaelic dùn

StepLanguageWordMeaning
1Scottish Gaelicdùnheap, mould; fort, fortress, castle; town
2Old Irishdúnfort; fortress; Alternative spelling of dúnn
Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Celtic dūnom →Every word from Proto-Germanic *dūnā →