Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Serbo-Croatian
čistost
←
Serbo-Croatian
čist
(suffix)
←
Serbo-Croatian
ost
(suffix)
←
Proto-Slavic
*čistostь
(inherited)