Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
cnapa
←
Proto-West Germanic
*knappō
(inherited)
→
English
knape
(inherited)
→
English
Knapton
(derived)
→
Middle English
knappe
(inherited)
→
Middle English
knape
(inherited)