Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
cunh
←
Catalan
cony
(cognate)
←
French
coin
(cognate)
←
Italian
conio
(cognate)
←
Latin
cuneus
(inherited)
←
Ladin
cogn
(cognate)