Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Swedish
skælla
←
Proto-Germanic
*skellaną
(inherited)
←
Proto-Germanic
*skallijaną
(inherited)
←
Old Norse
skella
(inherited)
←
Old Norse
skella
(inherited)
→
Swedish
skälla
(derived)
→
Swedish
skälla
(inherited)