Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Occitan
dia
←
Latin
dīēs
(inherited)
→
Catalan
dia
(inherited)
→
Occitan
dia
(inherited)
→
Old Spanish
dia
(cognate)