Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
предок
←
Old Church Slavonic
прѣдъкъ
(borrowed)
←
Russian
пред
(affix)
←
Russian
-ок
(affix)