Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
ден
←
Old Church Slavonic
дьнь
(inherited)
←
Proto-Slavic
*dьnь
(inherited)
→
Bulgarian
дневен
(affix)
→
Bulgarian
Великден
(compound)