Where does “bełduch” come from?

bełduch (Polish) comes from Polish bedłka, from Old Polish bedłka, from Old Polish bdła, from Proto-Slavic bъdla.

Ancestry of “bełduch”, step by step

StepLanguageWordMeaning
1Polishbedłkaany mushroom of the genus
2Old Polishbedłkaagaric
3Old Polishbdłamushroom
4Proto-Slavicbъdla—
Every word from Proto-Slavic bъdla →Every word from Old Polish bdła →Every word from Old Polish bedłka →