Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
ala
←
Latin
āla
(inherited)
→
Catalan
aleta
(suffix)
→
Catalan
aletejar
(affix)
→
Portuguese
á
(cognate)