Where does “кысель” come from?

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

Ancestry of “кысель”, step by step

StepLanguageWordMeaning
1Proto-Slavickyselь
2Proto-Slavickysnǫtito become/get wet; to become/turn sour

Words derived from “кысель

Every word from Proto-Slavic kysnǫtiEvery word from Proto-Slavic kyselь