Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
ljósleikr
←
Proto-Indo-European
*lewk-
(root)
←
Old Norse
ljóss
(suffix)
←
Old Norse
leikr
(suffix)