Word Parts
(http://www.homeworkhelp.com/homeworkhelp/freemember/text/english/high/lessons/vocab/conte...
)
Another way of figuring out what unfamiliar words mean is to break them down into parts-their prefixes, suffixes, and roots. Certain of these building blocks occur frequently in English, and their meaning is generally consistent wherever they appear. So, if you see one or more of these parts in a word, you have a good chance of figuring out what the rest of the word means.