Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Spanish
cuer
←
Proto-Indo-European
[[*ḱḗr]]
(derived)
←
Latin
cor
(inherited)
→
Dalmatian
cur
(cognate)