Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Hunsrik
Licht
←
Middle High German
lieht
(inherited)
←
Old High German
lioht
(inherited)
←
Proto-Indo-European
*lewk-
(root)