Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
treu
←
Old French
tref
(borrowed)
←
Galician
tarabela
(doublet)
←
Old Portuguese
treu
(inherited)
→
Galician
trabe
(doublet)
→
Galician
tarabela
(doublet)