Russian word formation
Russian language is very rich: using just one stem and adding various prefixes and suffixes Russians you can create many other words with very different meanings. Once you recognize the familiar stem in the word you see, use can translate and memorize it easier.
This series of Russian lessons gives you an opportunity to trace the same stem in a whole series of different Russian words with the same, close or different meanings. This is a good exercise for those who is learning Russian words.