| writer | write |
| inventor | invent(osoba) |
| bottle - opener | open |
| journalist | journal |
| pianist | piano |
| socialist | social |
| invention | invent |
| pollution | pollute |
| happiness | happy |
| weakness | weak |
| excitement | excite |
| productivity | product |
| motherhood | mother |
| friendship | friend |
| employer | employ |
| childhood | child |
| supervisor | supervise |
| flexibility | flexible |
| communication | communicate |
| violinist | violin |
| reduction | reduce |
| development | develope |
| membership | member |
| involvement | involve |
| arrangement | arrange |
| replacement | replace |
| partnership | partner |
| enjoyment | enjoy |
| brotherhood | brother |
| manhood | man |
| physicist | physic |
| scientist | science |
| forgetfulness | forgetful |
| readiness | ready |
| forgiveness | forgive |
| modernity | modern |
| admission | admit |
| successful | success |
