Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
arribar
←
Latin
[[ad]] [[rīpa]]
(inherited)
←
Old Occitan
aribar
(inherited)
←
Old Occitan
arivar
(mention)
→
Occitan
arribada
(mention)