Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
reykur
←
Proto-Germanic
*raukiz
(derived)
←
Old Norse
reykr
(derived)
→
Icelandic
reykja
(link)
→
Icelandic
rjúka
(mention)