Where does “киселина” come from?

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

киселина (Bulgarian): acid

Definitions

  1. acid

Ancestry of “киселина”, step by step

StepLanguageWordMeaning
1Bulgarianки́селsour, vinegary (for taste)
2Russianкисе́льkisel, kissel (a popular jellied dessert made by cooking berry juice or other fruit juice with milk, flour and oatmeal, thickened with starch)
3Old East Slavicкысель
4Proto-Slavickyselь
5Proto-Slavickysnǫtito become/get wet; to become/turn sour
Every word from Proto-Slavic kysnǫtiEvery word from Proto-Slavic kyselьEvery word from Old East Slavic кысель