Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
guerrejar
←
Catalan
guerra
(suffix)
←
Catalan
ejar
(suffix)
←
French
guerroyer
(cognate)
←
Occitan
guerrejar
(cognate)