Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
sem
←
Proto-Germanic
*samaz
(derived)
←
Old Norse
sem
(inherited)
→
Icelandic
Þ.s.s.á.
(mention)
→
Icelandic
ekki er allt gull sem glóir
(mention)
→
Icelandic
samt sem áður
(mention)
→
Swedish
som
(cognate)