Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Swedish
myrker
←
Proto-Germanic
*mirkwijaz
(inherited)
←
Proto-Germanic
*mirkwiz
(inherited)
←
Old Norse
myrkr
(inherited)
←
Old Norse
myrkr
(inherited)
→
Swedish
mörker
(inherited)
→
Swedish
mörk
(inherited)