Where does “dubblera” come from?
dubblera (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.
dubblera (Swedish): to double
Ancestry of “dubblera”, step by step