Schwellenpflug (German) comes from German Pflug, from Middle High German pfluoc, from Old High German pfluog, from Old Frisian plōg, from Proto-Germanic plōgaz, from Proto-Celtic ɸlowyos, from Proto-Indo-European plówyos, from Proto-Indo-European plew- — to fly, flow, run.
Schwellenpflug (German): railroad plow
Definitions
railroad plow
Ancestry of “Schwellenpflug”, step by step
Schwellenpflug traces back through two separate lines of ancestry.