Proto-Iranian *cwā́

→ Avestan 𐬯𐬞𐬀𐬥 (inherited)

→ Belarusian сабака (derived)

→ Persian سگ (inherited)

→ Persian اسبه (inherited)

→ Northern Kurdish se (inherited)

→ Old East Slavic собака (derived)

→ Pashto سپی (inherited)

→ Russian собака (derived)

→ Ukrainian собака (derived)

→ Old Median σπάκα (derived)