Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Armenian
կոտոր
←
Armenian
կտոր
(doublet)
←
Old Armenian
կոտոր
(derived)
→
Armenian
կտոր
(doublet)