Root words and Affixes

Topic: Root words and affixes (Prefixes and Suffixes)
What are root words?
A root word is a basic word with no prefix or suffix
added to it (a prefix is a string of letters that go
at the start of a word; a suffix is a string of letters
that go at the end of a word).
By adding prefixes and suffixes to a root word we
can change its meaning.

What are prefixes?
A prefix is a part of a word or a word, within a word.
It is put at the start of another word to make a
different meaning.
It can also mean a number that is put in at the
start to show which number something is in a group.
It is a type of affix(an addition to the base form
or stem of a word in order to modify its meaning
or create a new word.).

What are suffixes?
A suffix is a word part that is placed at the end
of a base word.
Common suffixes include ED, ING, and EST.
Take a look at more suffix examples below.
A suffix often transforms a word into a new
part of speech.

Here's a video where suffixes are further explained