Where does “три” come from?

три (Old Church Slavonic) comes from Proto-Slavic tri, from Proto-Balto-Slavic tríjes, from Proto-Indo-European *tréyes.

три (Old Church Slavonic): nominative/accusative feminine/neuter of трьѥ

Definitions

  1. nominative/accusative feminine/neuter of трьѥ

Ancestry of “три”, step by step

StepLanguageWordMeaning
1Proto-Slavictri—
2Proto-Balto-Slavictríjesthree
3Proto-Indo-European*tréyes—
Every word from Proto-Indo-European *tréyes →Every word from Proto-Balto-Slavic tríjes →Every word from Proto-Slavic tri →