Where does “Dahlberg” come from?

Dahlberg (Swedish) comes from Swedish dahl, 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 “Dahlberg”, step by step

Dahlberg traces back through two separate lines of ancestry.

via Swedish dahl

StepLanguageWordMeaning
1Swedishdahl—
2Swedishdalvalley, dale
3Old Swedishdalvalley
4Old Norsedalrdale, valley
5Proto-Germanicdaląvalley, dale
6Proto-Indo-Europeandʰel-an arch, vaulting, curve, curvature, cavity;...

via Swedish Berg

StepLanguageWordMeaning
1SwedishBerga mountain
2Old NorsebjargAlternative form of berg; cliff
3Proto-Germanicbergazhill; mountain; refuge; shelter
4Proto-Indo-Europeanbʰerǵʰ-to rise; high, lofty; hill, mountain
Every word from Proto-Indo-European dʰel- →Every word from Proto-Germanic dalą →Every word from Old Norse dalr →