Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Gediechtnes
←
German
Gedächtnis
(cognate)
←
Middle High German
gedæhtnisse
(inherited)
←
Luxembourgish
denken
(mention)
←
Luxembourgish
geduecht
(mention)
→
Alemannic German
Gedäächtnis
(cognate)