Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
riachuelo
←
Spanish
riacho
(affix)
←
Spanish
-uelo
(affix)
→
Galician
Riazó
(cognate)
→
Galician
Riazón
(cognate)