Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
цвърчок
←
Bulgarian
цвъ́рча
(affix)
←
Bulgarian
-ек
(affix)
←
Proto-Slavic
*svьrčь
(inherited)