Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
ferm
←
Latin
firmus
(inherited)
←
Old Occitan
ferm
(inherited)
→
Catalan
fermesa
(suffix)
→
Catalan
refermar
(confix)
→
Catalan
fermament
(affix)
→
Catalan
fermar
(affix)