Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
agràs
←
Catalan
agre
(affix)
←
Catalan
-às
(affix)
→
Catalan
agrassot
(affix)
→
Catalan
agrassó
(affix)
→
Galician
agraz
(cognate)