Proto-Slavic *syrovatъka

→ Bulgarian суроватка (derived)

→ Czech syrovátka (inherited)

→ Macedonian сурутка (derived)

→ Polish serwatka (inherited)

→ Russian сыворотка (derived)

→ Serbo-Croatian sirutka (derived)

→ Serbo-Croatian сурутка (derived)

→ Serbo-Croatian surutka (derived)

→ Serbo-Croatian сирутка (derived)

→ Slovak srvátka (derived)

→ Slovene sirotka (inherited)

→ Ukrainian сироватка (inherited)