Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
каяться
←
Proto-Indo-European
*kʷey-
(root)
←
Russian
-ся
(affix)
←
Proto-Slavic
*kàjati
(inherited)