Where does “резкость” come from?

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

резкость (Russian): harshness; acuity; abruptness

Definitions

  1. harshness; acuity; abruptness

Ancestry of “резкость”, 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 →