Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
magre
←
Proto-Indo-European
*mh₂ḱrós
(inherited)
←
Latin
macrum
(inherited)
←
Latin
macer
(mention)
←
Old Occitan
magre
(inherited)