Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
risi
←
Proto-Germanic
*risiz
(inherited)
←
Old Norse
risi
(inherited)
→
Icelandic
risaeðla
(compound)
→
Luxembourgish
Ris
(cognate)