Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
vanvettig
←
Danish
vanvittig
(cognate)
←
German
wahnwitzig
(cognate)
←
Old Swedish
vanvita
(derived)
←
Swedish
vanvett
(affix)
←
Swedish
-ig
(affix)