Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
amassar
←
Portuguese
a
(confix)
←
Portuguese
massa
(confix)
←
Portuguese
ar
(confix)
→
Galician
amasar
(cognate)
→
Italian
ammaccare
(cognate)