Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
terrón
←
Spanish
terrón
(cognate)
←
Galician
terra
(suffix)
←
Galician
ón
(suffix)
←
Portuguese
torrão
(cognate)
←
Old Portuguese
(inherited)
→
Galician
terroeira
(suffix)