Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
coneț
←
Bulgarian
конец
(cognate)
←
Czech
konec
(cognate)
←
Russian
конец
(cognate)
←
Proto-Slavic
*konьcь
(borrowed)