Where does “kyselь” come from?

kyselь (Proto-Slavic) comes from Proto-Slavic kysnǫti — to become/get wet; to become/turn sour.

Ancestry of “kyselь”, step by step

StepLanguageWordMeaning
1Proto-Slavickysnǫtito become/get wet; to become/turn sour

Words derived from “kyselь

Every word from Proto-Slavic kysnǫti