Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Armenian
-արէն
→
Persian
دیدن
(mention)
→
Armenian
-արեն
(derived)
→
Old Armenian
օրէն
(cognate)
→
Old Armenian
-երէն
(mention)