Proto-Slavic *zakonъ

→ Belarusian закон (inherited)

→ Bulgarian закон (inherited)

→ Czech zákon (inherited)

→ Old Church Slavonic законъ (inherited)

→ Macedonian закон (inherited)

→ Polish zakon (inherited)

→ Romanian bazaconie (mention)

→ Russian закон (inherited)

→ Aromanian zãcon (derived)

→ Serbo-Croatian закон (inherited)

→ Serbo-Croatian zakon (inherited)

→ Slovene zakon (inherited)

→ Albanian zakon (derived)

→ Ukrainian закон (inherited)