Where does “вредность” come from?

вредность (Russian) comes from Russian -ость, from Proto-Slavic -ostь — Used with adjectival stems to form abstract...

вредность (Russian): harmfulness; unhealthiness; bitchiness

Definitions

  1. harmfulness; unhealthiness; bitchiness

Ancestry of “вредность”, step by step

StepLanguageWordMeaning
1Russian-ость-ness, -ity
2Proto-Slavic-ostьUsed with adjectival stems to form abstract...
Every word from Proto-Slavic -ostь →Every word from Russian -ость →