Where does “uciérak” come from?

uciérak (Polish) comes from Polish ucierać, from Old Polish ucirać, from Old Polish utrzeć, from Old Polish u-, from Proto-Slavic u- — away.

Ancestry of “uciérak”, step by step

StepLanguageWordMeaning
1Polishucieraćto grate apart, to shred apart
2Old Polishuciraćto rub off; to dry
3Old Polishutrzećto rub off
4Old Polishu-perfective prefix
5Proto-Slavicu-away
Every word from Proto-Slavic u- →Every word from Old Polish u- →Every word from Old Polish utrzeć →