Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
denunța
←
French
dénoncer
(borrowed)
←
Latin
denuntiare
(derived)
→
Romanian
denunțător
(suffix)
→
Romanian
denunț
(back-formation)
→
Romanian
denunțare
(suffix)