Proto-Slavic *nikъto

→ Belarusian ніхто (inherited)

→ Czech nikdo (inherited)

→ Kashubian nicht (inherited)

→ Old Church Slavonic никъто (inherited)

→ Lithuanian niekas (cognate)

→ Polish nikt (inherited)

→ Russian никто (inherited)

→ Serbo-Croatian nitko (inherited)

→ Ukrainian ніхто (inherited)