Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
буна
←
Bulgarian
буя́
(affix)
←
Bulgarian
-на
(affix)
←
Bulgarian
бу́йство
(link)
←
Bulgarian
вълноло́м
(link)
←
Bulgarian
вълноре́з
(link)
←
German
Buhne
(borrowed)
←
Proto-Slavic
*buna
(inherited)