Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
octavius
←
Latin
Octāvius
(mention)
←
Latin
octāvus
(affix)
←
Latin
-ius
(affix)
←
Latin
octārius
(mention)