Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
sueno
←
Spanish
son
(doublet)
←
Latin
sonus
(inherited)
←
Old Spanish
sueno
(inherited)
→
Catalan
so
(mention)
→
Spanish
son
(doublet)