Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
desfalecer
←
Spanish
desfallecer
(cognate)
←
Galician
des-
(affix)
←
Galician
falecer
(affix)
←
Portuguese
desfalecer
(cognate)