Where does “błecha” come from?

błecha (Silesian) comes from Polish pchła, from Proto-Slavic blъxà, from Proto-Balto-Slavic blúšāˀ, from Proto-Indo-European bʰluseh₂ — flea.

Ancestry of “błecha”, step by step

StepLanguageWordMeaning
1Polishpchłaflea
2Proto-Slavicblъxàflea
3Proto-Balto-Slavicblúšāˀflea
4Proto-Indo-Europeanbʰluseh₂flea
Every word from Proto-Indo-European bʰluseh₂