Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*perina
→
Bulgarian
перница
(cognate)
→
Czech
peřina
(inherited)
→
Russian
перина
(inherited)
→
Serbo-Croatian
perina
(inherited)