Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
aderton
←
Proto-Germanic
*ahtōutehun
(inherited)
←
Old Swedish
adherton
(inherited)
←
Old Swedish
attartan
(mention)
←
Old Norse
átján
(inherited)
→
Elfdalian
aðertǫ
(cognate)
→
Swedish
arton
(derived)