Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
пирон
←
Bulgarian
пе́ра
(cognate)
←
Bulgarian
пи́рам
(affix)
←
Bulgarian
-он
(affix)
←
Ancient Greek
περόνη
(derived)