Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
countersign
←
English
counter
(prefix)
←
English
sign
(prefix)
←
Middle French
contresigne
(derived)
→
English
countersigner
(suffix)