Where does “wěsty” come from?

wěsty (Lower Sorbian) comes from Lower Sorbian jisty, from Proto-Slavic jistъ — true, genuine; same.

Ancestry of “wěsty”, step by step

StepLanguageWordMeaning
1Lower Sorbianjisty—
2Proto-Slavicjistъtrue, genuine; same
Every word from Proto-Slavic jistъ →Every word from Lower Sorbian jisty →
wěsty — Etymology, Origin & Word History | Etymology Explorer