Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
carr
←
Icelandic
kjarr
(cognate)
←
Old Norse
kjarr
(derived)
←
Swedish
kärr
(cognate)
→
English
car
(alter)