Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
eyja
←
Proto-Germanic
*awjō
(derived)
←
Icelandic
ey
(mention)
←
Icelandic
eyju
(mention)
←
Old Norse
ey
(derived)
→
Icelandic
Eyjafjallajökull
(mention)
→
Icelandic
Jólaeyja
(compound)
→
Old Norse
ey
(link)