Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Corsican
cumpagnu
←
French
copain
(cognate)
←
Proto-Germanic
*gahlaibô
(derived)
←
Proto-West Germanic
*gahlaibō
(derived)
←
Italian
compagno
(cognate)
→
Corsican
accumpagnà
(affix)