Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Hunsrik
ich
←
Proto-Germanic
[[*ek]], [[*ik]]
(inherited)
←
Middle High German
ich
(derived)
←
Old High German
ih
(inherited)
←
Proto-Indo-European
*éǵh₂
(inherited)