Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
dúbida
←
Spanish
duda
(cognate)
←
Galician
dubidar
(back-formation)
←
Portuguese
dúvida
(cognate)
←
Old Portuguese
dovida
(inherited)