Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
argazo
←
Galician
sargazo
(blend)
←
Galician
alga
(blend)
←
Galician
chaguazo
(doublet)
←
Latin
salicastrum
(derived)
←
Portuguese
sargaço
(cognate)