Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
extrem
←
Latin
extremus
(derived)
→
Catalan
extremista
(suffix)
→
Catalan
extremament
(suffix)
→
Catalan
extremitat
(affix)
→
Catalan
extremisme
(suffix)