Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
combregar
←
Latin
commūnicō
(inherited)
→
Catalan
comunicar
(doublet)
→
Catalan
combregador
(affix)