Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
costeira
←
Galician
costa
(suffix)
←
Galician
eira
(suffix)
←
Old Portuguese
costeira
(inherited)
→
Galician
costeiro
(link)
→
Galician
costeiro
(link)