Where does “szpaczek” come from?

szpaczek (Polish) comes from Polish szpak, from Middle High German spaz, from Middle English sparwe, from Old High German sparo, from Proto-West Germanic sparwō, from Proto-Germanic sparwô, from Proto-Indo-European spḗr — sparrow.

Ancestry of “szpaczek”, step by step

StepLanguageWordMeaning
1Polishszpakstarling
2Middle High Germanspaz—
3Middle EnglishsparweThe sparrow or its meat
4Old High Germansparosparrow
5Proto-West Germanicsparwōsparrow
6Proto-Germanicsparwôsparrow
7Proto-Indo-Europeanspḗrsparrow
Every word from Proto-Indo-European spḗr →Every word from Proto-Germanic sparwô →Every word from Proto-West Germanic sparwō →