Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
u
←
Latin
ū
(inherited)
←
Latin
ubi
(inherited)
→
Galician
las
(mention)
→
Galician
lo
(mention)
→
Portuguese
u
(cognate)