Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
cairell
←
Catalan
caire
(affix)
←
Catalan
-ell
(affix)
←
Latin
quadrus
(mention)
→
Catalan
carreu
(doublet)