Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
bonheur
←
French
bon
(compound)
←
French
heur
(compound)
←
Occitan
bonaür
(cognate)
→
Occitan
bonur
(cognate)