Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
uña
←
Spanish
uña
(cognate)
←
Latin
ungula
(inherited)
←
Portuguese
unha
(cognate)
←
Old Portuguese
unlla
(inherited)
←
Old Portuguese
unna
(mention)
→
Galician
rabuñar
(mention)
→
Portuguese
unha
(cognate)