Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
толково
←
Proto-Indo-European
*telkʷ-
(root)
←
Russian
толко́вый
(affix)
←
Russian
-о
(affix)