Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Armenian
-եար
←
Proto-Indo-European
*-ьro-
(mention)
←
Proto-Indo-European
*-ero-
(mention)
→
Armenian
-եր
(mention)