Proto-Slavic *šija

→ Bulgarian шия (inherited)

→ Czech šíje (inherited)

→ Lower Sorbian šyja (inherited)

→ Macedonian шија (inherited)

→ Polish szyja (inherited)

→ Russian шея (derived)

→ Serbo-Croatian šija (inherited)

→ Serbo-Croatian шија (inherited)

→ Slovak šija (inherited)

→ Ukrainian шия (inherited)