Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
kerling
←
Old Norse
kerling
(derived)
→
Icelandic
galdrakerling
(affix)
→
Elfdalian
kelingg
(cognate)