Proto-Slavic *klęti

→ Czech kletba (affix)

→ Czech klít (inherited)

→ Old Church Slavonic клѧти (inherited)

→ Old Church Slavonic проклѧти (inherited)

→ Lower Sorbian klěś (inherited)

→ Polish kląć (inherited)

→ Romanian proclet (derived)

→ Russian клясть (inherited)

→ Serbo-Croatian клети (inherited)

→ Serbo-Croatian kleti (inherited)

→ Ukrainian клясти (inherited)