Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*bolna
→
Bulgarian
блана
(inherited)
→
Czech
blána
(inherited)
→
Kashubian
blóna
(inherited)
→
Lithuanian
balnas
(cognate)
→
Polish
błona
(inherited)
→
Russian
болона
(inherited)