Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
gran
←
Latin
grandis
(inherited)
←
Latin
grānum
(derived)
←
Occitan
grand
(link)
←
Old Occitan
gran
(inherited)
→
Catalan
gra
(cognate)