Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
consumir
←
Latin
cōnsūmere
(inherited)
←
Latin
cōnsūmō
(mention)
←
Old Portuguese
consumir
(inherited)
←
Old Portuguese
consomir
(mention)
→
Portuguese
consumo
(back-formation)
→
Portuguese
consumidor
(affix)