Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
лечим
←
Bulgarian
лек
(affix)
←
Bulgarian
-им
(affix)
←
Proto-Slavic
*lěčimъ
(inherited)
→
Bulgarian
нелечим
(prefix)