Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
onödig
←
Danish
unødig
(cognate)
←
German
unnötig
(cognate)
←
Norwegian Bokmål
unødig
(cognate)
←
Norwegian Nynorsk
unødig
(cognate)
←
Swedish
o
(prefix)
←
Swedish
nödig
(prefix)