14 Prefixes Suffixes ROOT- WORDS Worksheets - Free PDF at ... - Free Printable

Absolutely! Let’s break down each word into its prefix, root word, and suffix. Remember, not every word has all three parts — some may only have a prefix and root, or root and suffix, or even just a root.

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📘 Key Definitions:

- Prefix: A group of letters added to the beginning of a word that changes its meaning (e.g., *un-* means “not”).
- Root Word: The core part of the word that carries the main meaning (e.g., *kind*, *heat*, *play*).
- Suffix: A group of letters added to the end of a word that can change its meaning or grammatical function (e.g., *-ly*, *-less*, *-est*).

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## ✔ Completed Worksheet:

| WORDS | PREFIX | ROOT WORD | SUFFIX |
|-------------|----------|------------|-----------|
| preheat | pre- | heat | |
| unkind | un- | kind | |
| undersea | under- | sea | |
| submarine | sub- | marine | |
| comfortable | | comfort | -able |
| wonderful | | wonder | -ful |
| defrost | de- | frost | |
| overlook | over- | look | |
| quickly | | quick | -ly |
| breathless | | breath | -less |
| tallest | | tall | -est |
| worthless | | worth | -less |
| replay | re- | play | |
| ungrateful | un- | grateful | |
| underground | under- | ground | |
| tallest | | tall | -est |
| unhappy | un- | happy | |
| preschool | pre- | school | |
| disappear | dis- | appear | |

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## 🔍 Explanation for Each Word:

1. preheat → *pre-* (before) + *heat* = to heat before use.
2. unkind → *un-* (not) + *kind* = not kind.
3. undersea → *under-* (beneath) + *sea* = beneath the sea.
4. submarine → *sub-* (under) + *marine* (of the sea) = vessel that travels underwater.
5. comfortable → *comfort* + *-able* (capable of) = capable of giving comfort.
6. wonderful → *wonder* + *-ful* (full of) = full of wonder.
7. defrost → *de-* (remove) + *frost* = remove frost.
8. overlook → *over-* (above/ignore) + *look* = to look over or fail to notice.
9. quickly → *quick* + *-ly* (in a manner) = in a quick manner.
10. breathless → *breath* + *-less* (without) = without breath.
11. tallest → *tall* + *-est* (superlative) = most tall.
12. worthless → *worth* + *-less* (without) = without value.
13. replay → *re-* (again) + *play* = to play again.
14. ungrateful → *un-* (not) + *grateful* = not grateful.
15. underground → *under-* + *ground* = beneath the ground.
16. tallest → same as #11 — likely repeated for practice.
17. unhappy → *un-* + *happy* = not happy.
18. preschool → *pre-* + *school* = before school (early education).
19. disappear → *dis-* (away/not) + *appear* = to vanish.

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✔ Note: Some words like *tallest* appear twice — this is likely intentional for reinforcement. Also, words like *comfortable* and *wonderful* have no prefix but do have suffixes.

This worksheet helps students understand how words are built and how prefixes/suffixes change meanings — a key skill in vocabulary and reading comprehension!

Let me know if you’d like a printable version or flashcards for these words! 📚✨