Where does “grucha” come from?

grucha (Polish) comes from Polish grusza, from Proto-Slavic kruša, from Proto-Slavic -ja, from Proto-Indo-European -yeh₂.

Ancestry of “grucha”, step by step

StepLanguageWordMeaning
1Polishgruszapear tree
2Proto-Slavickrušapear
3Proto-Slavic-jaSuffix creating feminine action nouns, usually...
4Proto-Indo-European-yeh₂—
Every word from Proto-Indo-European -yeh₂ →Every word from Proto-Slavic -ja →Every word from Proto-Slavic kruša →