Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
högg
←
Proto-Germanic
*hawwą
(inherited)
←
Proto-Germanic
*hawwaną
(mention)
←
Old Norse
hǫgg
(inherited)
→
Estonian
haav
(cognate)
→
Finnish
haava
(cognate)
→
Icelandic
hnefahögg
(affix)
→
Icelandic
skógarhögg
(compound)