Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
estúpid
←
Middle French
stupide
(derived)
←
Latin
stupidus
(derived)
←
Latin
stupeō
(mention)
→
Catalan
estupidesa
(affix)
→
Catalan
estúpidament
(suffix)