Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
comichão
←
Spanish
comezón
(cognate)
←
Latin
comestus
(derived)
→
Spanish
comezón
(cognate)
→
Galician
comechón
(cognate)