Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
шифър
←
Arabic
صِفر
(cognate)
←
Bulgarian
цифра
(cognate)
←
French
chiffre
(borrowed)
←
Russian
шифр
(cognate)