Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
Atenes
←
Ancient Greek
Ἀθῆναι
(borrowed)
→
Catalan
atenenc
(affix)
→
Catalan
atenès
(affix)