Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
rella
←
Catalan
rella
(cognate)
←
Spanish
reja
(cognate)
←
Latin
rēgula
(inherited)
←
Portuguese
relha
(cognate)