Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
vilken
←
Proto-Germanic
*hwilīkaz
(derived)
←
Old Norse
hvílíkan
(derived)
←
Old Norse
hvílíkr
(mention)
→
English
which
(cognate)