Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
cruceiro
←
Spanish
crucero
(cognate)
←
Galician
cruz
(suffix)
←
Galician
eiro
(suffix)
←
Portuguese
cruzeiro
(cognate)