Suffixes Worksheets - Free Printable

To solve the problem, we need to identify the prefix, root word, and suffix for each given word. Here's a step-by-step explanation of how to do this:

Definitions:

- Prefix: A group of letters added to the beginning of a root word to change its meaning.
- Root Word: The base part of a word that carries the primary meaning.
- Suffix: A group of letters added to the end of a root word to change its meaning or form.

Solution:

#### 1. Preheat
- Prefix: pre-
- Root Word: heat
- Suffix: None

#### 2. Unkind
- Prefix: un-
- Root Word: kind
- Suffix: None

#### 3. Undersea
- Prefix: under-
- Root Word: sea
- Suffix: None

#### 4. Submarine
- Prefix: sub-
- Root Word: marine
- Suffix: None

#### 5. Comfortable
- Prefix: None
- Root Word: comfort
- Suffix: -able

#### 6. Wonderful
- Prefix: None
- Root Word: wonder
- Suffix: -ful

#### 7. Defrost
- Prefix: de-
- Root Word: frost
- Suffix: None

#### 8. Overlook
- Prefix: over-
- Root Word: look
- Suffix: None

#### 9. Quickly
- Prefix: None
- Root Word: quick
- Suffix: -ly

#### 10. Breathless
- Prefix: None
- Root Word: breath
- Suffix: -less

#### 11. Tallest
- Prefix: None
- Root Word: tall
- Suffix: -est

#### 12. Worthless
- Prefix: None
- Root Word: worth
- Suffix: -less

#### 13. Replay
- Prefix: re-
- Root Word: play
- Suffix: None

#### 14. Ungrateful
- Prefix: un-
- Root Word: grateful
- Suffix: None

#### 15. Underground
- Prefix: under-
- Root Word: ground
- Suffix: None

#### 16. Tallest
- Prefix: None
- Root Word: tall
- Suffix: -est

#### 17. Unhappy
- Prefix: un-
- Root Word: happy
- Suffix: None

#### 18. Preschool
- Prefix: pre-
- Root Word: school
- Suffix: None

#### 19. Disappear
- Prefix: dis-
- Root Word: appear
- Suffix: None

Final Answer:

Here is the completed table:

| 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 | |

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