Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Iranian *Háywah

→ Avestan 𐬀𐬉𐬎𐬎𐬀 (inherited)
→ Central Kurdish یەک (derived)
→ Persian یک (inherited)
→ Persian ـی (inherited)
→ Northern Kurdish yek (derived)
→ Ossetian иу (inherited)
→ Old Persian 𐎠𐎡𐎺 (inherited)
→ Bactrian ιωγο (derived)