Proto-Slavic *kostь

→ Belarusian косць (inherited)

→ Bulgarian кост (inherited)

→ Czech kost (inherited)

→ Czech kostka (mention)

→ Czech kostrč (mention)

→ Old Church Slavonic кость (inherited)

→ Lower Sorbian kósć (inherited)

→ Upper Sorbian kósć (inherited)

→ Macedonian коска (derived)

→ Polish kość (inherited)

→ Polish kostka (mention)

→ Romanian costeliv (derived)

→ Russian кость (inherited)

→ Rusyn кість (inherited)

→ Serbo-Croatian кост (inherited)

→ Serbo-Croatian kost (inherited)

→ Serbo-Croatian kocka (mention)

→ Serbo-Croatian коцка (mention)

→ Slovak kosť (inherited)

→ Slovak kocka (mention)

→ Slovene kost (inherited)

→ Slovene kocka (mention)

→ Ukrainian кість (inherited)

→ Old Czech kost (inherited)