Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
црькꙑ
←
Proto-Slavic
*cьrky
(inherited)
→
English
church
(cognate)
→
Old Church Slavonic
црькъвище
(affix)
→
Old Church Slavonic
црькъвьнъ
(suffix)