Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
areng
←
Proto-West Germanic
*hāring
(derived)
←
Old Occitan
arenc
(inherited)
→
Catalan
arengada
(affix)