Where does “jokihelmisimpukka” come from?
jokihelmisimpukka (Finnish) comes from Finnish helmisimpukka, from Finnish helmi, from Finnish Vilhelmiina, from German Wilhelmina, from German Wilhelm, from Old High German Willahelm, from Old High German helm, from Proto-West Germanic helm — to pierce, strike; to stick; prick; stab.
jokihelmisimpukka (Finnish): freshwater pearl mussel
Ancestry of “jokihelmisimpukka”, step by step