Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle High German
kunt
←
Proto-Germanic
*kuntǭ
(derived)
←
Old High German
<sup>?</sup>[[cunta]]
(inherited)
→
English
couth
(cognate)