Where does “Cierpiał” come from?

Cierpiał (Polish) comes from Polish cierpieć, from Proto-Slavic *tьrpě̀ti — to suffer.

Ancestry of “Cierpiał”, step by step

StepLanguageWordMeaning
1Polishcierpiećsuffer
2Proto-Slavic*tьrpě̀tito suffer
Every word from Proto-Slavic *tьrpě̀ti →Every word from Polish cierpieć →