Proto-Slavic *krǫgъ

→ Belarusian круг (inherited)

→ Bulgarian кръг (inherited)

→ Bulgarian окръг (mention)

→ Czech kruh (inherited)

→ Old Church Slavonic крѫгъ (inherited)

→ Macedonian круг (inherited)

→ Macedonian кружи (mention)

→ Polish krąg (inherited)

→ Polish kręg (inherited)

→ Romanian crâng (derived)

→ Russian округ (mention)

→ Russian круг (inherited)

→ Serbo-Croatian krug (inherited)

→ Serbo-Croatian круг (inherited)

→ Slovene krog (inherited)

→ Albanian vrangull (cognate)

→ Albanian vrull (cognate)

→ Old Polish krąg (inherited)