Hi. I'm studying Czech and I need help in learning vocabs. For example, "přijet" can be divided into "při" and "jet" and we can understand the word. I started thinking about word stems when I got to remember the word "zarděnky". Does this word have the same stem as "zardělost"? If so, it really helps me to learn words. And I need books or websites to study this way. If anybody know something, please let me know. I'm not native English speaker, so I don't know if I explained well what I need... Thank you.