Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Occitan
asegurar
←
Latin
ad-
(inherited)
←
Latin
sēcūrus
(mention)
←
Old Occitan
segur
(mention)
→
Catalan
assegurar
(inherited)
→
Occitan
assegurar
(inherited)