Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
бряг
←
Proto-Slavic
*bergъ
(inherited)
→
Bulgarian
брегови
(mention)
→
Bulgarian
брегобегач
(affix)