Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
cometa
←
Catalan
coma
(affix)
←
Catalan
-eta
(affix)
←
Ancient Greek
κομήτης
(derived)
←
Latin
comēta
(derived)
→
Catalan
coma
(link)