Proto-Slavic *kotъ

→ Belarusian кот (inherited)

→ Bulgarian котка (mention)

→ Kashubian kòt (inherited)

→ Old Church Slavonic котъка (inherited)

→ Lower Sorbian kót (inherited)

→ Polish kot (inherited)

→ Polish kocur (mention)

→ Romanian cotoi (mention)

→ Russian кошка (inherited(ru/be))

→ Russian кошка (inherited)

→ Russian кот (inherited)

→ Ukrainian кіт (inherited)