Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
casoiro
←
Galician
casa
(mention)
←
Galician
casar
(mention)
←
Galician
-oiro
(affix)
←
Portuguese
casório
(cognate)