Prefixes and Suffixes

What does the prefix 're' mean in the word 'reuse'?

What does the suffix 'ful' mean in the word 'joyful'?

What does the prefix 'un' mean in the word 'unhappy'?

What does the suffix 'less' mean in the word 'hopeless'?

What does the prefix 'mis' mean in the word 'misunderstand'?

What does the suffix 'ing' indicate in the word 'running'?

What does the prefix 'dis' mean in the word 'disagree'?

What does the suffix 'er' mean in the word 'teacher'?

What does the prefix 'over' mean in the word 'overcook'?

What does the suffix 'able' mean in the word 'readable'?