Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
variable
←
Latin
variābilis
(derived)
→
Catalan
invariable
(affix)
→
Catalan
variablement
(suffix)
→
Catalan
variabilitat
(affix)