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# 6.1: The Prefix Dis-

Difficulty Level: At Grade Created by: CK-12

## The Prefix Dis-

1. So far you have worked with three prefixes. They are all in the words below:

$&\text{recounted} && \text{miscounted} && \text{uncounted} && \text{discounted}$

What are the three prefixes with which you have worked? re-, mis-, and un-.

2. There is a fourth prefix in those four words. What is it? dis-.

3. The prefix dis- appears in all of the twelve words below:

$&\text{discard} && \text{discount} && \text{discharge} && \text{disappear}\\&\text{disarm} && \text{discover} && \text{dishonest} && \text{disorder}\\&\text{distrust} && \text{disagree} && \text{disobey} && \text{disgrace}$

Like the prefix mis-, the prefix dis- can mean different things. But usually it means on of the following:

“Lack of, not” as in dishonest

“Removal or reversal, opposite” as in disinfect.

Compare the meaning of each of the twelve words with the meaning of the free stem that is left when you take away the prefix dis-. Then sort the twelve dis- words into the following two groups. Again we have given you some extra blanks, in case you feel that some words belong in more than one group:

Words in which dis- means . . .
“Lack of, not” “Removal, reversal”
disagree disarm
dishonest discount
disobey discover
disorder discharge
disgrace disappear
disgrace

Word Changes

Word Changes are puzzles in which you make changes in words according to directions you are given. Each change makes a new word. The last change makes a word that will solve the riddle at the end of the puzzle.

1. Write the word misspell: misspell.

2. Take away the prefix that means “mistakenly” and put on the suffix that means “in the past”: spelled.

3. Take away the fourth and fifth letters in the word: speed

4. Move the first letter in the word to the very end and change the $<\mathrm{p}>$ to the letter that comes two places after it in the alphabet: reeds.

5. Change the second vowel in the word to the first vowel in the alphabet; remove the last consonant in the word: read.

6. Put back the prefix that means “mistakenly.” Then fill in the blank and answer the riddle:

Teaching Notes.

Item 3. Again you might expect some differences of opinion.

## Subjects:

1 , 2 , 3 , 4 , 5

Feb 23, 2012

Jan 26, 2015