Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
amasar
←
Spanish
amasar
(cognate)
←
Galician
a
(prefix)
←
Galician
masa
(prefix)
←
Portuguese
amassar
(cognate)
←
Old Portuguese
amassar
(inherited)