Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
sihþ
←
Proto-West Germanic
*sihti
(inherited)
→
English
sight
(mention)
→
Old English
gesihþ
(prefix)
→
Middle English
sighte
(derived)