Root words are words that do not have a prefix (letters which can be added to the beginning of a word) or a suffix (letters which can be added to the end of a word). They are words in their simplest form.
For example: joy, friend and play are all root words.
We can add prefixes or suffixes to root words to change the meaning of words and create 'word families'. 'Word families' are words which all have the same root word.
Prefixes and suffixes change the meaning of words.
If you add the prefix un to a word it means 'not'. Unfriendly means not friendly; unhappy means not happy.
The suffix ly can be added to adjectives to form adverbs e.g. carefully, sadly, helplessly.
Can you think of any other prefixes or suffixes and what they mean?
Let's make a start on the questions now.