Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*maþukaz
→
Danish
maddike
(derived)
→
Scanian
maðk
(inherited)
→
Old Norse
maðkr
(inherited)