Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
bakkan
←
Proto-Germanic
*bakaną
(inherited)
←
Proto-Indo-European
*bʰeh₃g-
(root)
→
Old Norse
baka
(cognate)