Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
gisehan
←
Proto-Germanic
*gasehwaną
(inherited)
←
Proto-West Germanic
*gasehwan
(inherited)
←
Old Saxon
gi
(prefix)
←
Old Saxon
sehan
(prefix)