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