Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
umbigangan
←
Proto-Indo-European
*ǵʰengʰ-
(root)
←
Old Saxon
umbi
(prefix)
←
Old Saxon
gangan
(prefix)