Identify the prefix and suffix added to each root word in the list.

Let's solve the problem step by step.

We are given a list of words, and we need to identify the prefix and suffix added to each root word. A prefix is added at the beginning of a word, and a suffix is added at the end.

Here’s the list of words:

1. uninterested
2. unlike
3. encouragement
4. disgraceful
5. unreasonable
6. reusable
7. incredibly
8. unhappier
9. irreducible
10. unfriendly

---

Let’s break down each word:

---

1. uninterested

- Root word: *interested*
- Prefix: *un-* (means "not")
- Suffix: *-ed* (past tense or adjective form)
- ✔ Prefix: un-, Suffix: -ed

---

2. unlike

- Root word: *like*
- Prefix: *un-* (means "not")
- Suffix: none
- ✔ Prefix: un-, Suffix: (none)

---

3. encouragement

- Root word: *courage*
- Prefix: *en-* (often means "to cause" or "put into")
- Suffix: *-ment* (forms nouns indicating action or result)
- But wait: "encourage" comes from *cour* (from "courage"), so:
- *en-* + *courage* → *encourage*, then *-ment* added.
- So the root word here is likely *encourage*, but we’re looking for prefix and suffix added to the root.
- Actually, let’s reframe: root = encourage, then add -ment.
- But "encourage" itself has a prefix *en-* and root *courage*.
- However, in this context, the base is likely encourage, and the suffix is -ment.
- So: Prefix: *(none)*, Suffix: -ment? But that doesn’t fit.

Wait — perhaps the root is courage, and the prefix is en-, suffix is -ment?

But “encouragement” = en- + courage + -ment

So:
- Prefix: en-
- Suffix: -ment
- ✔ Prefix: en-, Suffix: -ment

---

4. disgraceful

- Root word: *grace*
- Prefix: *dis-* (means "not", "opposite of")
- Suffix: *-ful* (means "full of")
- So: dis- + grace + -ful → disgraceful
- ✔ Prefix: dis-, Suffix: -ful

---

5. unreasonable

- Root word: *reasonable*
- But let's break it down:
- *reason* → root
- *-able* → suffix meaning "capable of"
- *un-* → prefix meaning "not"
- So: un- + reasonable → unreasonable
- But "reasonable" = reason + -able
- So in "unreasonable":
- Prefix: un-
- Suffix: -able
- ✔ Prefix: un-, Suffix: -able

---

6. reusable

- Root word: *use*
- Prefix: *re-* (means "again")
- Suffix: *-able* (means "capable of")
- So: re- + use + -able → reusable
- ✔ Prefix: re-, Suffix: -able

---

7. incredibly

- Root word: *credit*
- But actually: "incredible" → *in-* + *credible* → *in- + cred + -ible*
- Then add -ly to make adverb
- So:
- Root: *credit*
- Prefix: *in-* (meaning "not")
- Suffix: *-ly* (adverbial ending)
- But "incredibly" = in- + credible + -ly
- So:
- Prefix: in-
- Suffix: -ly
- ✔ Prefix: in-, Suffix: -ly

---

8. unhappier

- Root word: *happy*
- Prefix: *un-* (meaning "not")
- Suffix: *-er* (comparative form)
- So: un- + happy + -er → unhappier
- ✔ Prefix: un-, Suffix: -er

---

9. irreducible

- Root word: *reduce*
- Prefix: *ir-* (variant of *in-*, meaning "not")
- Suffix: *-able* (meaning "capable of")
- So: ir- + reduce + -able → irreducible
- ✔ Prefix: ir-, Suffix: -able

---

10. unfriendly

- Root word: *friendly*
- But "friendly" = friend + -ly
- So "unfriendly" = un- + friendly
- So:
- Prefix: un-
- Suffix: -ly
- ✔ Prefix: un-, Suffix: -ly

---

Now, let’s summarize all answers:

| Word | Prefix | Suffix |
|-----------------|--------|----------|
| uninterested | un- | -ed |
| unlike | un- | (none) |
| encouragement | en- | -ment |
| disgraceful | dis- | -ful |
| unreasonable | un- | -able |
| reusable | re- | -able |
| incredibly | in- | -ly |
| unhappier | un- | -er |
| irreducible | ir- | -able |
| unfriendly | un- | -ly |

---

✔ Final Answer:

```
Prefix Word Suffix
------ ---- ------
un- uninterested -ed
un- unlike (none)
en- encouragement -ment
dis- disgraceful -ful
un- unreasonable -able
re- reusable -able
in- incredibly -ly
un- unhappier -er
ir- irreducible -able
un- unfriendly -ly
```

Let me know if you'd like this formatted as a table or printed out!