Prefixes, Root Words, Suffixes

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Prefixes, Root Words, Suffixes
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• How can prefixes and suffixes change a root word?

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They can change its meaning.
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• A ROOT Word is the original word without a
  prefix or suffix.

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• Example
• Unfriendly
• Friend is the
• root word.

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Prefixes come at the beginning and Suffixes come
at the end.
Un friend ly
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For 3rd Grade, you need to know the following
prefixes.
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• UN-
• DIS-
• RE-
• IN-

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What does UN- mean?
NOT
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Look at the following UN- words and tell their
meaning.
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Unhappy
NOT happy
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Ungrateful
NOT grateful
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Unfriendly
NOT friendly
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• What does the prefix DIS- mean?

NOT
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• Look at the following DIS- words and determine
  their meaning.

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• Disrespectful

NOT respectful
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• Disable

NOT able
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What does RE- mean?
DO AGAIN
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Look at the following RE- words and tell their
meaning.
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Review
view something again
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Rewind
wind something again
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Replay
Play again
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For 3rd Grade, you need to know the following
suffixes.
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• -ous
• -tion
• -ly

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What does TION mean?
The act of
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For example,Education
The act of getting an education
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For example,Inspection
The act of inspecting something
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For example,Pronuncation
The act of pronouncing something
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-OUS means full of
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For example Spacious means full of space
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For example Gracious means full of grace
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-ly makes the word mean the same thing, just
changes a word into an adverb.
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For example She was HAPPY. Or She walked HAPPILY
into the room.
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She is a good friend. She is FRIENDLY to her
classmates.
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Look at the following words. Identify the prefix,
suffix, or root word.
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• ROOT WORD

Unfriendly
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• SUFFIX

HAPPILY
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• PREFIX

UNKIND
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• ROOT WORD

GRACEFULLY
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• ROOT WORD

DISRESPECTFUL
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• ROOT WORD

UNHAPPILY
HAPPY