Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
уд
←
Bulgarian
у
(affix)
←
Bulgarian
-д
(affix)
←
Old Church Slavonic
ѹдъ
(inherited)
←
Proto-Slavic
*udъ
(inherited)
→
Russian
уд
(cognate)