Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
dalha
←
Catalan
daga
(cognate)
←
Franco-Provençal
dalye
(cognate)
→
Occitan
dalhatge
(suffix)