Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
funi
←
Proto-Germanic
*fōr
(inherited)
←
Proto-Indo-European
*péh₂wr̥
(inherited)
←
Old Norse
fúrr
(inherited)
←
Old Norse
fýr
(mention)
←
Old Norse
funi
(mention)
→
Icelandic
funa
(mention)