Where does “uciarać” come from?

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

Ancestry of “uciarać”, step by step

StepLanguageWordMeaning
1Polishcioraćto dirty, to soil, to sully
2Polishtrzećto rub; to grate, to shred
3Proto-Slavictertito rub, to scrape; to polish
4Proto-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 →