Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Low German
üm
←
Proto-Germanic
*umbi
(inherited)
←
Middle Low German
ümme
(inherited)
←
Old Saxon
umbi
(inherited)
→
Low German
ümkamen
(prefix)