Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
lekr
←
Proto-Indo-European
*leg-
(root)
←
Old Norse
leka
(mention)
→
Icelandic
lekur
(derived)
→
Norwegian Nynorsk
lek
(inherited)