A prefix can be one syllable or more and is added to the beginning of the root word and its associated words which changes its meaning.
From the root word happy, the words unhappy, unhappier, unhappiness can be made.
Adding a prefix to a root word is usually quite simple - there are no rules to remember (such as changing or dropping letters).
Here is a list in alphabetical order of some common prefixes with examples of their uses and explanations of how the new words they form differ from the root words.
Prefixes to HOME PAGE