Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
kál
←
Old English
cawel
(derived)
←
Old English
caul
(mention)
←
Old English
cāl
(mention)
←
Ancient Greek
καυλός
(derived)
←
Proto-Indo-European
*kaw(ǝ)l
(derived)
←
Proto-Indo-European
*kowos
(mention)
←
Latin
caulis
(derived)
←
Old Norse
kál
(derived)
→
Faroese
reyðkál
(compound)