Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Armenian
կէտ
←
Old Armenian
կծանեմ
(mention)
→
Armenian
կետ
(derived)
→
Old Armenian
կծանեմ
(mention)