Where does “Knöllchenbakterium” come from?
Knöllchenbakterium (German) comes from German Knöllchen, from German knolle, from Middle High German knolle, from Old High German chnollo, from Proto-Germanic knudan-.
Knöllchenbakterium (German): rhizobium
Ancestry of “Knöllchenbakterium”, step by step