Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
dilluns
←
Latin
diēs Lūnae
(inherited)
←
Occitan
diluns
(cognate)
→
Catalan
endillunsat
(confix)
→
Occitan
diluns
(cognate)