Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
trenchant
←
Old French
trenchant
(derived)
←
Old French
trenchier
(mention)
→
English
trenchantly
(suffix)
→
English
intrenchant
(prefix)
→
English
trenchantness
(suffix)