Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
poli
→
Catalan
monopoli
(confix)
→
Catalan
oligopoli
(confix)
→
Catalan
duopoli
(confix)
→
Catalan
polígon
(confix)
→
Catalan
polipèptid
(prefix)