Where does “сердечность” come from?

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

сердечность (Russian): kindness, sincerity, cordiality

Definitions

  1. kindness, sincerity, cordiality

Ancestry of “сердечность”, 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 →