Proto-Slavic *svekrъ

→ Belarusian свёкар (inherited)

→ Bulgarian свекър (derived)

→ Bulgarian свекърва (inherited)

→ Old Church Slavonic свекръ (inherited)

→ Macedonian свекор (inherited)

→ Polish świekier (inherited)

→ Russian свёкор (inherited)

→ Serbo-Croatian svekar (inherited)

→ Serbo-Croatian свекар (inherited)

→ Slovak svokor (inherited)

→ Ukrainian свекор (inherited)

→ Old Polish świekier (inherited)