Where does “доступность” come from?

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

доступность (Russian): accessibility; availability; moderateness (of prices)

Definitions

  1. accessibility; availability; moderateness (of prices)

Ancestry of “доступность”, step by step

StepLanguageWordMeaning
1Russianдосту́пныйaccessible, available
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