Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
колбас
←
Bulgarian
кълба́с
(doublet)
←
Russian
колба́са
(borrowed)
←
Proto-Slavic
*kъlbasa
(derived)
←
Proto-Slavic
*kъlbasъ
(cognate)