Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
ratear
←
Latin
ratus
(mention)
←
Portuguese
rato
(suffix)
←
Portuguese
ear
(suffix)
→
Portuguese
rateio
(back-formation)