Proto-Slavic *koza

→ Belarusian каза (inherited)

→ Belarusian казёл (affix)

→ Bulgarian коза (inherited)

→ Czech koza (inherited)

→ Czech koza (inherited(cs/zlw-ocs))

→ Kashubian kòza (inherited)

→ Old Church Slavonic коза (inherited)

→ Old Church Slavonic козьлѧ (mention)

→ Lower Sorbian kóza (inherited)

→ Upper Sorbian koza (inherited)

→ Macedonian коза (inherited)

→ Polish koza (inherited)

→ Russian козёл (affix)

→ Russian коза (inherited)

→ Serbo-Croatian koza (inherited)

→ Serbo-Croatian коза (inherited)

→ Slovak koza (inherited)

→ Slovene koza (inherited)

→ Ukrainian коза (inherited)