Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old High German
knohha
←
Proto-Germanic
*knukô
(inherited)
→
German
Knochen
(inherited)
→
Alemannic German
Chnoche
(inherited)
→
Luxembourgish
Knachen
(inherited)