Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Italian
merce
←
Latin
mercem
(inherited)
←
Latin
merx
(mention)
→
Italian
merceologia
(suffix)
→
Italian
merceria
(suffix)
→
Italian
merciaio
(suffix)
→
Italian
mercificare
(suffix)