Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
opreegen
←
German
aufregen
(cognate)
←
German
regen
(cognate)
←
Middle High German
regen
(inherited)
←
Luxembourgish
op-
(affix)
←
Luxembourgish
(affix)
←
Luxembourgish
(mention)
←
Luxembourgish
(mention)
←
Luxembourgish
ureegen
(mention)