Where does “дръзкост” come from?

дръзкост (Bulgarian) comes from Bulgarian -ост, from Old Church Slavonic -ость, from Proto-Slavic -ostь — Used with adjectival stems to form abstract...

Ancestry of “дръзкост”, step by step

StepLanguageWordMeaning
1Bulgarian-ост—
2Old Church Slavonic-ость-ness, -ity; deadjectival nominalizing suffix...
3Proto-Slavic-ostьUsed with adjectival stems to form abstract...
Every word from Proto-Slavic -ostь →Every word from Bulgarian -ост →Every word from Old Church Slavonic -ость →