Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
дълбей
←
Bulgarian
дълба́я
(affix)
←
Bulgarian
-ей
(affix)
←
Proto-Slavic
*dьlbьjь
(inherited)
←
Proto-Slavic
*dьlbějь
(mention)