Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
зестра
←
Romanian
zestre
(borrowed)
←
Proto-Slavic
-
(cognate)
←
Proto-Slavic
*zętь
(affix)
←
Proto-Slavic
*-tra
(affix)