Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
libro
←
Latin
liber
(inherited)
←
Portuguese
livro
(cognate)
←
Old Portuguese
livro
(inherited)
→
Galician
libraría
(suffix)
→
Portuguese
livro
(cognate)