Where does “спокойствие” come from?

спокойствие (Bulgarian) comes from Bulgarian -ство, from Old Church Slavonic -ьство, from Proto-Slavic -ьstvo, from Proto-Balto-Slavic -istwas.

спокойствие (Bulgarian): quiet, silence, calm absence of noise, sound, or disturbance; peaceful quiet

Definitions

  1. quiet, silence, calm absence of noise, sound, or disturbance; peaceful quiet

Ancestry of “спокойствие”, step by step

StepLanguageWordMeaning
1Bulgarian-ство—
2Old Church Slavonic-ьствоforms abstract or collective nouns
3Proto-Slavic-ьstvoDeadjectival, forming nouns denoting a condition...
4Proto-Balto-Slavic-istwas—
Every word from Proto-Balto-Slavic -istwas →Every word from Proto-Slavic -ьstvo →Every word from Bulgarian -ство →