Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
semicercle
←
Catalan
semi-
(affix)
←
Catalan
cercle
(affix)
→
Catalan
semicircular
(affix)