Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Wouerecht
←
Middle High German
wārheit
(inherited)
←
Middle High German
(mention)
←
Middle High German
arbeit
(mention)
←
Luxembourgish
Aarbecht
(mention)