Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
belgicus
←
Latin
Belga
(mention)
←
Latin
Belga
(mention)
←
Latin
-icus
(affix)
→
Dutch
Belgisch
(derived)