Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
avoengo
←
Spanish
abolengo
(cognate)
←
Galician
avó
(suffix)
←
Galician
engo
(suffix)
←
Portuguese
avoengo
(cognate)