Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
köpstad
←
Swedish
köp
(compound)
←
Swedish
stad
(compound)
→
English
cheapstead
(cognate)
→
Danish
købstad
(cognate)