Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
Svíþjóð
←
Icelandic
Svíi
(compound)
←
Icelandic
þjóð
(compound)
→
Old English
Sweoþeod
(cognate)