Where does “шестьдесят” come from?

шестьдесят (Russian) comes from Russian шесть, from Old East Slavic шесть, from Proto-Slavic šestь, from Proto-Balto-Slavic šéš, from Proto-Indo-European swéḱs — six.

шестьдесят (Russian): sixty (60)

Definitions

  1. sixty (60)

Ancestry of “шестьдесят”, step by step

шестьдесят traces back through two separate lines of ancestry.

via Russian шесть

StepLanguageWordMeaning
1Russianшестьsix
2Old East Slavicшестьsix
3Proto-Slavicšestьsix
4Proto-Balto-Slavicšéšsix
5Proto-Indo-Europeanswéḱssix

via Russian де́сять

StepLanguageWordMeaning
1Russianде́сятьten
2Old Church Slavonicдесѧтьten
3Proto-Slavicdesętьten
4Proto-Balto-Slavic*déśimtten
5Proto-Indo-Europeandéḱm̥tten

Words derived from “шестьдесят”

Every word from Proto-Indo-European swéḱs →Every word from Proto-Balto-Slavic šéš →Every word from Proto-Slavic šestь →