Where does “Van der Valk” come from?

Van der Valk (English) comes from Dutch Van der Valk, from Dutch valk, from Middle Dutch valke, from Old Dutch falco, from Proto-West Germanic falkō, from Proto-Germanic falkô, from Proto-Indo-European pōl-, from Slovincian pól — to split off, separate; to chop, to separate.

Ancestry of “Van der Valk”, step by step

StepLanguageWordMeaning
1DutchVan der Valk
2DutchvalkA falcon, bird of the family Falconidae, in...
3Middle Dutchvalke
4Old Dutchfalcofalcon
5Proto-West Germanicfalkōfalcon
6Proto-Germanicfalkôfalcon
7Proto-Indo-Europeanpōl-
8Slovincianpólhalf
9Proto-Slavicpolъside, flank; half; member of a pair of options →...
10Proto-Indo-European(s)pelH-to split off, separate; to chop, to separate
Every word from Proto-Indo-European (s)pelH-Every word from Proto-Slavic polъEvery word from Slovincian pól