Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-West Germanic
*gauk
→
Old English
geac
(inherited)
→
German
Gauch
(inherited)
→
Old High German
gouh
(inherited)
→
German Low German
Göök
(inherited)