Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
eftersom
←
Old Swedish
æptir sum
(inherited)
←
Swedish
efter
(compound)
←
Swedish
som
(compound)
→
Elfdalian
ettersos
(cognate)