Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
obligatoire
←
French
obliger
(cognate)
←
Latin
obligō
(mention)
→
French
obligatoirement
(suffix)
→
Romanian
obligatoriu
(borrowed)