Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Ouer
←
German
Ohr
(cognate)
←
Proto-Germanic
*ausô
(inherited)
←
Old High German
ōra
(inherited)
→
Luxembourgish
Ouereschmalz
(compound)
→
Luxembourgish
Ouerrank
(compound)