Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norman
fliatter
←
Old French
flater
(derived)
←
Proto-Germanic
*flatą
(derived)
←
Proto-Germanic
*flatō
(mention)
←
Proto-Germanic
*flataz
(mention)
→
Norman
fliatteux
(suffix)