Etymology is the best method to strengthen our command over English Language.By using your knowledge of familiar words, you will soon master the secret of vocabulary building, starting with the thousands of words in this page. 
One ROOT-WORD a day will open the door to mastery of the ENGLISH language. I guarantee that if you learn only the ROOT-WORDS, you will become familiar with thousands of words which we use regularly.Do not try to memorize them. Merely read and understand. Then use the words in your daily conversations and writing.Soon, your vocabulary will expand greatly.Etymology is the best method to strengthen our command over English Language. The Canons of Etymology will make the points clear.