Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
brudigumo
←
Proto-Germanic
*brūdigumô
(inherited)
←
Old Saxon
brūd
(compound)
←
Old Saxon
gumo
(compound)