Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
hefna
←
Danish
hævne
(cognate)
←
Norwegian
hevne
(cognate)
←
Swedish
hämnas
(cognate)
→
Icelandic
hefnd
(mention)