Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
reodan
←
Proto-Germanic
*reudaną
(inherited)
←
Proto-Indo-European
*h₁rewdʰ-
(root)
←
Old Norse
rjóða
(cognate)