Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
uewer-
←
German
ober-
(cognate)
←
Middle High German
ober-
(inherited)
←
Old High German
obaro
(inherited)
→
Luxembourgish
Uewerkuer
(affix)