Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
cil
←
Proto-Indo-European
(derived)
←
Proto-Indo-European
*ḱel-
(mention)
←
Latin
cilium
(borrowed)
→
Catalan
cella
(cognate)
→
French
ciller
(suffix)
→
French
dessiller
(confix)
→
French
déciller
(confix)
→
Romanian
cil
(borrowed)