Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Bulgarian -ваем
← Proto-Slavic *-vajemъ (inherited)

→ Bulgarian надуваем (affix)
→ Bulgarian -ом (link)
→ Bulgarian -яем (link)
→ Bulgarian -яем (link)
→ Bulgarian познаваем (affix)
→ Bulgarian откриваем (affix)