Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
ígulker
←
Proto-Germanic
*igilaz
(derived)
←
Proto-Indo-European
*h₁eǵʰis
(derived)
→
Faroese
igulker
(cognate)