Where does “кислотность” come from?

кислотность (Russian) comes from Russian кисло́тный, from Russian -ный, from Old Church Slavonic -ьнъ, from Proto-Slavic -ьnъ — -ish, -ic, -al, -ed; From adjectives.

кислотность (Russian): acidity quality or state of being acid

Definitions

  1. acidity quality or state of being acid

Ancestry of “кислотность”, step by step

StepLanguageWordMeaning
1Russianкисло́тныйacid, acidic
2Russian-ный-ish, -ic, -al, -ed
3Old Church Slavonic-ьнъish, -ic, -al, -ed
4Proto-Slavic-ьnъ-ish, -ic, -al, -ed; From adjectives
Every word from Proto-Slavic -ьnъEvery word from Russian -ныйEvery word from Old Church Slavonic -ьнъ