Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
ośmiokroć
←
Polish
osiem
(affix)
←
Polish
-o-
(affix)
←
Polish
-kroć
(affix)
←
Proto-Slavic
*osmь kortь
(inherited)