Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
samvera
←
Danish
samvær
(cognate)
←
Icelandic
sam-
(prefix)
←
Icelandic
vera
(prefix)
→
Danish
samvær
(cognate)
→
Westrobothnian
samvöru
(cognate)