Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
ertur
←
Proto-Germanic
*arwaaito
(derived)
←
Old Norse
ertr
(derived)
→
Faroese
ertnasúpan
(compound)
→
Icelandic
erta
(cognate)
→
Swedish
ärt
(cognate)