Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
trauereg
←
German
traurig
(cognate)
←
Proto-Germanic
*dreuzagaz
(inherited)
←
Middle High German
trūrec
(inherited)
←
Old High German
trūrag
(inherited)
←
Luxembourgish
Trauer
(affix)
←
Luxembourgish
-eg
(affix)
←
Dutch
treurig
(cognate)