Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
nagli
←
Proto-Germanic
*naglaz
(inherited)
←
Old Norse
nagl
(inherited)
→
Icelandic
negla
(link)
→
Icelandic
hitta naglann á höfuðið
(mention)
→
Icelandic
nagladekk
(affix)