Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Armenian
-գին
←
Proto-Iranian
(derived)
←
Undetermined
*-agēn
(mention)
←
Old Armenian
ուժգին
(mention)
→
Armenian
-գին
(derived)
→
Old Armenian
-ագին
(mention)