Where does “-ьба” come from?

-ьба (Old East Slavic) comes from Proto-Slavic -ьba — Forms action nouns from verbs.

Ancestry of “-ьба”, step by step

StepLanguageWordMeaning
1Proto-Slavic-ьbaForms action nouns from verbs
Every word from Proto-Slavic -ьba
-ьба — Etymology, Origin & Word History | Etymology Explorer