Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle High German
diuster
→
German
düster
(inherited(de/gmw-cfr))
→
Central Franconian
deister
(inherited)
→
Luxembourgish
däischter
(inherited)