Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Italian
coacervo
←
Spanish
acervo
(cognate)
←
Italian
coacervare
(back-formation)
←
Portuguese
-
(cognate)
→
Portuguese
acervo
(cognate)