Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
íslenskur
←
Old Norse
íslenzkr
(derived)
←
Old Norse
Ísland
(mention)
→
English
Icelandish
(cognate)
→
Icelandic
séríslenskur
(affix)