Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
mysa
←
Proto-Germanic
*mihswǭ
(inherited)
→
Icelandic
mysuostur
(affix)
→
Swedish
messmör
(cognate)