Where does “бързина” come from?

бързина (Bulgarian) comes from Bulgarian -ина, from Old Church Slavonic -ина.

бързина (Bulgarian): speed

Definitions

  1. speed

Ancestry of “бързина”, step by step

StepLanguageWordMeaning
1Bulgarian-инаforms abstract feminine nouns from adjectives; -ness, -th
2Old Church Slavonic-ина—
Every word from Old Church Slavonic -ина →Every word from Bulgarian -ина →
бързина — Etymology, Origin & Word History | Etymology Explorer