Where does “Aostatal” come from?

Aostatal (German) comes from German tal, from Middle High German tal, from Old High German tal, from Proto-West Germanic *dal, from Proto-Germanic dalą, from Proto-Indo-European dʰel- — an arch, vaulting, curve, curvature, cavity;...

Ancestry of “Aostatal”, step by step

StepLanguageWordMeaning
1Germantalvalley
2Middle High Germantal—
3Old High Germantalvalley
4Proto-West Germanic*dalvalley, dale
5Proto-Germanicdaląvalley, dale
6Proto-Indo-Europeandʰel-an arch, vaulting, curve, curvature, cavity;...

Words derived from “Aostatal”

Every word from Proto-Indo-European dʰel- →Every word from Proto-Germanic dalą →Every word from Proto-West Germanic *dal →