Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old East Slavic
брѣгъ
←
Old Church Slavonic
брѣгъ
(borrowed)
←
Old East Slavic
берегъ
(doublet)
→
Old East Slavic
берегъ
(doublet)
→
Russian
брег
(inherited)