Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
kafa
←
Ancient Greek
βάπτω
(cognate)
←
Proto-Indo-European
*gʷebʰ-
(derived)
→
Icelandic
kafari
(suffix)
→
Icelandic
kafbátur
(compound)