Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
Luftschloss
←
German
Luft
(compound)
←
German
Schloss
(compound)
→
Danish
luftkastel
(cognate)
→
Esperanto
aerkastelo
(cognate)
→
Swedish
luftslott
(cognate)