Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
beniwunda
←
Proto-Indo-European
*gʷʰen-
(root)
←
Old Saxon
beni
(compound)
←
Old Saxon
wunda
(compound)
→
Old English
benn
(cognate)