Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
preocupa
←
French
préoccuper
(borrowed)
←
Latin
praeoccupare
(derived)
→
Romanian
preocupare
(suffix)
→
Romanian
preocupat
(mention)