Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
dementar
←
Spanish
de-
(affix)
←
Spanish
mente
(affix)
←
Spanish
-ar
(affix)
←
Latin
dēmentāre
(borrowed)
←
Latin
dēmentō
(mention)