Where does “сумнявацца” come from?

сумнявацца (Belarusian) comes from Belarusian -ся, from Old East Slavic сѧ, from Proto-Slavic sę, from Proto-Balto-Slavic *sen, from Proto-Indo-European swé — self.

сумнявацца (Belarusian): to doubt

Definitions

  1. to doubt

Ancestry of “сумнявацца”, step by step

StepLanguageWordMeaning
1Belarusian-сяReflexive suffix appended to finite verbs and...
2Old East Slavicсѧ—
3Proto-Slavicsęoneself: myself, yourself, himself, herself,...
4Proto-Balto-Slavic*senoneself
5Proto-Indo-Europeanswéself
Every word from Proto-Indo-European swé →Every word from Proto-Balto-Slavic *sen →Every word from Proto-Slavic sę →