Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
обичай
←
Bulgarian
обикновен
(affix)
←
Bulgarian
-яй
(affix)
←
Bulgarian
обича́ен
(link)
←
Proto-Slavic
*obyčajь
(inherited)