Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
rjúka
←
Proto-Germanic
*reukaną
(inherited)
←
Icelandic
reykur
(mention)
←
Old Norse
rjúka
(inherited)
→
Icelandic
reykja
(link)
→
Luxembourgish
richen
(cognate)