Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
hvilken
←
German
welcher
(cognate)
←
English
which
(cognate)
←
Proto-Germanic
*hwilīkaz
(derived)
←
Proto-Germanic
*hwaz
(compound)
←
Proto-Germanic
*-līkaz
(compound)
←
Old Danish
huilk
(derived)
←
Old Danish
huilkin
(mention)
←
Gothic
𐍈𐌹𐌻𐌴𐌹𐌺𐍃
(cognate)
←
Old Norse
hvílíkr
(derived)
→
English
which
(cognate)
→
Danish
sikken
(mention)