Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
cepy
→
Russian
цеп
(cognate)
→
Serbo-Croatian
cep
(cognate)
→
Serbo-Croatian
цеп
(cognate)
→
Serbo-Croatian
cijep
(cognate)
→
Serbo-Croatian
цијеп
(cognate)