Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
близнец
←
Bulgarian
близна́к
(cognate)
←
Bulgarian
бли́зо
(affix)
←
Bulgarian
-нец
(affix)
←
Old Church Slavonic
близньць
(inherited)
←
Proto-Slavic
*blizьnьcь
(inherited)