Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
farstandan
←
Proto-Germanic
*frastandaną
(inherited)
←
Old Saxon
far
(prefix)
←
Old Saxon
standan
(prefix)
→
English
forsta
(derived)
→
Swedish
förstå
(derived)