Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
rieden
←
German
reden
(cognate)
←
Old High German
redōn
(inherited)
←
Old High German
rediōn
(mention)
→
Luxembourgish
Riedner
(suffix)