Where does “dubbelpropellerplan” come from?
dubbelpropellerplan (Swedish) comes from Swedish dubbel, from Old Swedish dobel, from German Dübel, from Middle High German tübel, from Old High German tubil, from Proto-Germanic dubilaz, from Proto-Germanic dubjaną, from Proto-Indo-European dʰewbʰ- — smoke; mist, haze.
dubbelpropellerplan (Swedish): double-propeller plane
Ancestry of “dubbelpropellerplan”, step by step