Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
cota
←
Proto-Germanic
*kuttô
(derived)
←
Latin
cotta
(derived)
←
Old Occitan
cota
(inherited)
→
Catalan
escotar
(mention)