Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
-ac
→
Romanian
prostănac
(suffix)
→
Romanian
fundac
(suffix)
→
Romanian
postac
(affix)
→
Romanian
cufundac
(suffix)