Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Iranian
*dwáH
→
Avestan
𐬛𐬎𐬎𐬀
(inherited)
→
Baluchi
دو
(inherited)
→
Central Kurdish
دوو
(inherited)
→
Persian
دو
(inherited)
→
Northern Kurdish
du
(inherited)