Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Russian брег
Old Church Slavonic брѣгъ (derived)
Old Church Slavonic ⰱⱃⱑⰳⱏ (mention)
Old East Slavic брѣгъ (inherited)
Russian бе́рег (doublet)
Proto-Slavic *bergъ (derived)

Russian берег (doublet)
Russian берег (link)
Russian безбрежный (affix)