Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
hvorugur
←
Old Norse
hvárigr
(derived)
←
Old Norse
hvárrgi
(mention)
←
Old Norse
hvárr
(mention)
←
Old Norse
-gi
(mention)
→
Icelandic
hvorugkyn
(mention)