Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*-ьnikъ
→
Belarusian
-нік
(inherited)
→
Old Church Slavonic
-ьникъ
(inherited)
→
Macedonian
-ник
(inherited)
→
Russian
-ник
(inherited)
→
Serbo-Croatian
-nik
(mention)