Proto-Indo-Iranian *Hā́ps

→ Avestan 𐬀𐬞 (inherited)

→ Baluchi آپ (inherited)

→ Central Kurdish ئاو (inherited)

→ Persian آب (inherited)

→ Northern Kurdish av (derived)

→ Middle Persian ʾp̄ (inherited)

→ Old Persian 𐎠𐎱𐎡𐎹𐎠 (inherited)

→ Pashto اوبه (derived)

→ Sanskrit अप् (inherited)

→ Talysh آو (inherited)

→ Bactrian αββο (derived)