Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
West Frisian
djip
←
Proto-Germanic
*deupaz
(inherited)
←
Proto-Indo-European
*dʰewb-
(derived)
→
English
deep
(cognate)
→
Dutch
diep
(cognate)