Where does “普斯科夫” come from?

普斯科夫 (Chinese) comes from Russian Псков, from Old East Slavic Пльсковъ, from Proto-Slavic *plьsky — probably clear, spot-free place.

Ancestry of “普斯科夫”, step by step

StepLanguageWordMeaning
1RussianПсков
2Old East SlavicПльсковъPskov
3Proto-Slavic*plьskyprobably clear, spot-free place
Every word from Proto-Slavic *plьskyEvery word from Old East Slavic ПльсковъEvery word from Russian Псков