Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
cerne
←
Old French
(inherited)
←
Latin
circinus
(inherited)
←
Romanian
cearcăn
(cognate)
→
French
anticerne
(prefix)
→
Romanian
cearcăn
(cognate)