Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle High German
koch
→
Cimbrian
khoch
(inherited)
→
German
Koch
(inherited)
→
German
Koch
(inherited)
→
Luxembourgish
Kach
(inherited)