Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
mercure
→
French
mercurique
(suffix)
→
French
mercureux
(suffix)
→
French
mercurer
(suffix)
→
Romanian
mercur
(mention)