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

→ Baluchi چار (inherited)
→ Central Kurdish چار (inherited)
→ Persian چهار (inherited)
→ Ossetian цыппар (inherited)
→ Sarikoli cavúr (inherited)
→ Bactrian σοφαρο (derived)
→ Bulgar твирем (derived)