Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
каца
←
Bulgarian
кад
(affix)
←
Bulgarian
-ца
(affix)
←
Bulgarian
каца́р
(link)
←
Bulgarian
каца́рка
(link)
←
Bulgarian
кад
(link)
←
Proto-Slavic
*kadь
(derived)