Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
arroio
←
Spanish
arroyo
(cognate)
←
Latin
arrugia
(mention)
←
Portuguese
arroio
(cognate)
→
Galician
arroiar
(mention)