Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
etnisk
←
German
ethnisch
(cognate)
←
English
ethnic
(cognate)
←
Ancient Greek
ἐθνικός
(derived)
←
Ancient Greek
ἔθνος
(mention)