Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
kjallari
←
Middle Low German
keller
(derived)
←
Icelandic
kjallari
(cognate)
←
Norwegian
kjeller
(cognate)
←
Old Norse
kellari
(derived)
←
Swedish
källare
(cognate)
→
Icelandic
kjallari
(cognate)