Where does “cieruty” come from?

cieruty (Polish) comes from Polish trzeć, from Proto-Slavic terti, from Proto-Indo-European terh₁- — to rub, turn; to drill, pierce.

Ancestry of “cieruty”, step by step

StepLanguageWordMeaning
1Polishtrzećto rub; to grate, to shred
2Proto-Slavictertito rub, to scrape; to polish
3Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce
Every word from Proto-Indo-European terh₁- →Every word from Proto-Slavic terti →Every word from Polish trzeć →