Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
пряпор
←
Proto-Slavic
*perporъ
(inherited)
←
Proto-Slavic
*porporъ
(cognate)
←
Proto-Slavic
*perti
(cognate)
←
Proto-Slavic
*tǫtonъ
(mention)
←
Proto-Slavic
*tǫtenъ
(mention)
←
Proto-Slavic
*per-
(mention)