Proto-Slavic *vъnukъ

→ Belarusian унук (inherited)

→ Belarusian унучка (inherited)

→ Bulgarian внук (inherited)

→ Czech vnuk (inherited)

→ Macedonian внук (inherited)

→ Polish wnuk (inherited)

→ Russian внук (inherited)

→ Russian внучка (inherited)

→ Serbo-Croatian unuk (inherited)

→ Serbo-Croatian унук (inherited)

→ Slovak vnuk (inherited)

→ Slovene vnuk (inherited)

→ Ukrainian внук (inherited)

→ Ukrainian онук (inherited)

→ Old Polish wnęka (derived)

→ Old Polish wnęk (inherited)