Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
os
←
Old Norse
oss
(derived)
→
English
us
(cognate)
→
Danish
Århus
(mention)
→
Scots
wuss
(cognate)