Where does “-ство” come from?

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

Ancestry of “-ство”, step by step

StepLanguageWordMeaning
1Old Church Slavonic-ьствоforms abstract or collective nouns
2Proto-Slavic-ьstvoDeadjectival, forming nouns denoting a condition...
3Proto-Balto-Slavic-istwas—

Words derived from “-ство”

Every word from Proto-Balto-Slavic -istwas →Every word from Proto-Slavic -ьstvo →Every word from Old Church Slavonic -ьство →