Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
lykill
←
Proto-Germanic
*lukilaz
(inherited)
←
Old Norse
lykill
(inherited)
→
Icelandic
lyklaborð
(affix)
→
Icelandic
lyklabarn
(affix)
→
Icelandic
g-lykill
(mention)
→
Icelandic
dreifilykill
(prefix)
→
Icelandic
einkalykill
(prefix)
→
Icelandic
friggjarlykill
(affix)
→
Icelandic
lykilorð
(affix)
→
Icelandic
bíllykill
(affix)
→
Norwegian Bokmål
nøkkel
(cognate)