Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
fem
←
Proto-Germanic
*fimf
(derived)
←
Proto-Indo-European
*pénkʷe
(derived)
←
Old Norse
fimm
(derived)
→
Danish
femsproget
(affix)
→
Icelandic
fimm
(cognate)