Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
cabeceira
←
Spanish
cabecera
(cognate)
←
Portuguese
cabeça
(suffix)
←
Portuguese
eira
(suffix)
→
Spanish
cabecera
(cognate)