Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
rostungur
←
Proto-Germanic
*rustaz
(inherited)
←
Translingual
Rosmarus
(mention)
←
Old Norse
rostungr
(inherited)
→
Old Norse
rosti
(cognate)