Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
dobbelt
→
Danish
dobbeltgænger
(compound)
→
Danish
dobbeltseng
(compound)
→
Danish
dobbeltuddannelse
(affix)