Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
spónn
←
Proto-Germanic
*spēnuz
(inherited)
←
Old Norse
spónn
(inherited)
←
Old Norse
spánn
(mention)