Where does “dún” come from?

dún (Irish) comes from Old Irish dún, from Proto-Celtic dūnom, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

dún (Irish): fort; fortress; place of refuge, haven;...

Definitions

  1. fort; fortress; place of refuge, haven;...

Ancestry of “dún”, step by step

StepLanguageWordMeaning
1Old Irishdúnfort; fortress; Alternative spelling of dúnn
2Proto-Celticdūnomstronghold, rampart
3Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Celtic dūnom →Every word from Old Irish dún →
dún — Etymology, Origin & Word History | Etymology Explorer