Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
traité
←
Old French
traitié
(inherited)
←
Old French
traiete
(mention)
←
Latin
tractātus
(inherited)
→
Romanian
tratat
(cognate)