Where does “wancka” come from?

wancka (Polish) comes from German Wanze, from Old High German wantlūs, from Old High German lūs, from Proto-West Germanic lus, from Proto-Germanic lūs, from Proto-Indo-European lewH- — louse.

Ancestry of “wancka”, step by step

StepLanguageWordMeaning
1GermanWanzebedbug; specifically, any insect of the suborder...
2Old High Germanwantlūsbedbug; bug, bedbug
3Old High Germanlūs—
4Proto-West Germanicluslouse
5Proto-Germaniclūslouse
6Proto-Indo-EuropeanlewH-louse
Every word from Proto-Indo-European lewH- →Every word from Proto-Germanic lūs →Every word from Proto-West Germanic lus →