Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
deorf
←
Proto-Germanic
*derbaz
(inherited)
←
Proto-Germanic
*derbaną
(inherited)
←
Proto-Indo-European
*dʰerHbʰ-
(derived)
→
English
derf
(mention)