Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
amuralhar
←
Spanish
amurallar
(cognate)
←
Portuguese
a-
(affix)
←
Portuguese
muralha
(affix)
←
Portuguese
-ar
(affix)
→
Spanish
amurallar
(cognate)