Where does “Dahl” come from?

Dahl (Swedish) comes from Swedish dal, from Old Swedish dal, from Old Norse dalr, from Proto-Germanic dalą, from Proto-Indo-European dʰel- — an arch, vaulting, curve, curvature, cavity;...

Ancestry of “Dahl”, step by step

StepLanguageWordMeaning
1Swedishdalvalley, dale
2Old Swedishdalvalley
3Old Norsedalrdale, valley
4Proto-Germanicdaląvalley, dale
5Proto-Indo-Europeandʰel-an arch, vaulting, curve, curvature, cavity;...
Every word from Proto-Indo-European dʰel- →Every word from Proto-Germanic dalą →Every word from Old Norse dalr →