Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Aromanian
aerã
←
Greek
αέρας
(borrowed)
←
Latin
aer
(derived)
←
Latin
-
(cognate)
←
Romanian
aer
(cognate)