Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
jøkul
←
Proto-Germanic
*jekulaz
(derived)
←
Proto-Germanic
*jikilaz
(mention)
←
Old Norse
jǫkull
(derived)
←
Old Norse
jaki
(cognate)