Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Elfdalian
tunggel
←
Proto-Germanic
*tunglą
(derived)
←
Old Norse
tungl
(derived)
←
Swedish
tungel
(cognate)
→
Elfdalian
tunggelliuos
(compound)