Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
assentar
←
Latin
*adsedentāre
(mention)
←
Latin
ad
(mention)
←
Latin
sedentāre
(mention)
←
Portuguese
a
(prefix)
←
Portuguese
sentar
(prefix)
←
Old Portuguese
assentar
(mention)
←
Old Portuguese
asentar
(mention)
→
Portuguese
assento
(back-formation)