Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Spanish
otero
←
Latin
altārium
(inherited)
←
Latin
altus
(mention)
←
Old Spanish
oto
(mention)
←
Old Spanish
-ero
(mention)
←
Old Portuguese
outeiro
(cognate)
→
Spanish
otero
(inherited)