Proto-Slavic *trьje

→ Bulgarian три (inherited)

→ Czech tří- (derived)

→ Kashubian trzë (inherited)

→ Old Church Slavonic трьѥ (inherited)

→ Lower Sorbian tśi (inherited)

→ Macedonian три (inherited)

→ Polabian tåri (inherited)

→ Russian три (inherited)

→ Rusyn три (inherited)

→ Serbo-Croatian три (inherited)

→ Slovene trije (inherited)

→ Ukrainian три (inherited)