Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
ena
←
Danish
ene
(cognate)
←
German
einen
(cognate)
←
Old Swedish
ena
(derived)
←
Norwegian Bokmål
ene
(cognate)
←
Norwegian Nynorsk
[[eine]], [[eina]]
(cognate)
←
Swedish
en
(suffix)
←
Swedish
a
(suffix)
→
Swedish
allena
(prefix)
→
Swedish
förena
(prefix)