Where does “опытность” come from?

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

опытность (Russian): expertise, proficiency

Definitions

  1. expertise, proficiency

Ancestry of “опытность”, step by step

StepLanguageWordMeaning
1Russianо́пытныйexperienced
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 -ьnъ →Every word from Russian -ный →Every word from Old Church Slavonic -ьнъ →
опытность — Etymology, Origin & Word History | Etymology Explorer