Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
ata
←
Proto-Germanic
*atǭ
(inherited)
←
Proto-Germanic
*atōną
(inherited)
←
Proto-Indo-European
[[*od-]], [[*h₃ed-]]
(inherited)
←
Old Norse
etja
(link)