Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
почивам
←
Bulgarian
-вам
(affix)
←
Old Church Slavonic
почити
(derived)
←
Proto-Slavic
*počivati
(inherited)
→
Bulgarian
коя
(link)