Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
òxid
←
French
oxyde
(borrowed)
→
Catalan
oxidar
(affix)
→
Catalan
monòxid
(prefix)
→
Catalan
diòxid
(prefix)