Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
rogn
←
Old Norse
hrogn
(derived)
→
English
roe
(cognate)
→
German
Rogen
(cognate)
→
Swedish
rom
(mention)