Oldenzijl (Dutch) comes from Dutch -zijl, from Dutch Zijl — a short river in South Holland near Leiden between the Oude Rijn and the Kagerplassen; originally a tidal rivulet that was widened in the early High Middle Ages to improve the drainage of the nearby polders.
a short river in South Holland near Leiden between the Oude Rijn and the Kagerplassen; originally a tidal rivulet that was widened in the early High Middle Ages to improve the drainage of the nearby polders