Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Walloon
ci
←
Old French
cist
(inherited)
←
Latin
ecce
(inherited)
←
Latin
istum
(mention)
←
Latin
iste
(mention)