Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Schell
←
German
Schelle
(cognate)
←
Old High German
skella
(inherited)
←
Luxembourgish
schalen
(mention)
←
Dutch
schel
(cognate)