Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
duru
←
Proto-Germanic
*durz
(inherited)
←
Proto-Indo-European
*dʰwer-
(root)
←
Proto-Indo-European
*dʰwer-
(derived)
→
German Low German
Döör
(inherited)
→
Old Saxon
dor
(cognate)