Where does “Rotterdam” come from?

Rotterdam (Dutch) comes from Middle Dutch rotterdam, from Middle Dutch dam, from Old Dutch dam, from Proto-West Germanic *damm, from Proto-Germanic dammaz — dam.

Ancestry of “Rotterdam”, step by step

StepLanguageWordMeaning
1Middle DutchrotterdamRotterdam
2Middle Dutchdam—
3Old Dutchdam—
4Proto-West Germanic*dammdam
5Proto-Germanicdammazdam

Words derived from “Rotterdam”

Every word from Proto-Germanic dammaz →Every word from Proto-West Germanic *damm →Every word from Old Dutch dam →