Where does “Giessendam” come from?

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

Ancestry of “Giessendam”, step by step

Giessendam traces back through two separate lines of ancestry.

via Middle Dutch dam

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

via Dutch Giessen

StepLanguageWordMeaning
1DutchGiessen—
Every word from Proto-Germanic dammaz →Every word from Proto-West Germanic *damm →Every word from Old Dutch dam →