Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
spjót
←
Proto-Germanic
*speutą
(derived)
←
Old Norse
spjót
(derived)
→
Icelandic
spjótkast
(compound)