Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
farelo
←
Asturian
fariellu
(cognate)
←
Latin
far
(inherited)
←
Portuguese
farelo
(cognate)
→
Galician
esfarelar
(prefix)
→
Portuguese
farelo
(cognate)