Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
rör
←
Danish
rør
(borrowed)
←
Icelandic
reyr
(mention)
←
Old Norse
reyrr
(inherited)
→
Icelandic
púströr
(compound)