Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
пън
←
Proto-Slavic
*pь̏ňь
(inherited)
→
Serbo-Croatian
panj
(cognate)
→
Serbo-Croatian
пањ
(cognate)