Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
alongar
←
Galician
a-
(affix)
←
Galician
longo
(affix)
←
Galician
-ar
(affix)
←
Old Portuguese
alongar
(inherited)