Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
vansénn
←
Proto-Indo-European
*h₁weh₂-
(root)
←
Proto-Indo-European
*sekʷ-
(root)
←
Old Norse
van
(prefix)
←
Old Norse
sénn
(prefix)