The story
- Proto-West Germanic · derived from*dīk
- Old Frisian · derived fromdik“dike”
- Dutch · borrowed fromDijkstra
- West Frisian · borrowed fromDykstra
- English todayDykstra
Borrowed from West Frisian Dykstra or Dutch Dijkstra, a topographic surname from Old Frisian dik (“dike”), from Proto-West Germanic *dīk.
Etymology from Wiktionary, CC BY-SA 4.0.