Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
sehan
←
Proto-West Germanic
*sehwan
(inherited)
→
Old English
seon
(cognate)
→
Low German
sehn
(inherited)
→
Old Saxon
bisehan
(prefix)
→
Old Saxon
gisehan
(prefix)
→
Old Saxon
farsehan
(prefix)