Where Do English Words Come From?
Have you ever found a word on a test that you've never seen before? That can feel scary! But here's a secret: most English words are built from smaller pieces. If you know those pieces, you can figure out what the big word means.
English is like a giant puzzle. Over hundreds of years, people mixed words from Latin, Greek, and other languages to create new words. These tiny building blocks are called roots, prefixes, and suffixes. Let's see how they grew over time!
So here's the big question: How can you use these word parts to figure out a tricky word on the ISEE? That's exactly what this lesson will teach you. Let's go!
The Three Building Blocks of Words
Think of a word like a sandwich. It has parts that go together. Every word has at least one main part, and some words have extra parts added to the beginning or end. Let's learn the three building blocks!
Root (The Main Idea)
Prefix (Before the Root)
Suffix (After the Root)
See How Word Parts Fit Together
Let's look at a picture that shows how word parts connect. This diagram breaks apart the word "unbreakable" into its three pieces. Notice how each piece adds meaning!
See how it works? Each piece carries a clue. When you put the clues together, you can figure out the whole word. Not every word has all three parts. Some words have just a root and a prefix, or just a root and a suffix. But the trick is the same: break the word into parts and think about what each part means.
How to Decode Any Word — Step by Step
On the ISEE, you'll see words in the Synonym and Sentence Completion questions. Here is your Word Detective Strategy — four steps you can use every time you see a word you don't know.
Step 1: Spot the Root
Step 2: Check the Prefix
Step 3: Check the Suffix
Step 4: Put It All Together
Must-Know Prefixes, Roots & Suffixes
You don't need to memorize every word part in the whole dictionary. But learning the most common ones gives you a huge advantage. Here are the ones that show up most often on the ISEE!
Common Prefixes
| Prefix | Meaning | Example |
|---|---|---|
| un- | not | unhappy = not happy |
| re- | again | rewrite = write again |
| pre- | before | preview = see before |
| mis- | wrong, badly | misspell = spell wrong |
| dis- | not, opposite | disagree = not agree |
| sub- | under, below | submarine = under the sea |
Common Roots
| Root | Meaning | Example |
|---|---|---|
| port | carry | transport = carry across |
| vis / vid | see | visible = able to be seen |
| dict | say, speak | predict = say before |
| aud | hear | audience = people who hear |
| scrib / script | write | describe = write about |
| tract | pull, drag | attract = pull toward |
Common Suffixes
| Suffix | Meaning | Example |
|---|---|---|
| -ful | full of | joyful = full of joy |
| -less | without | careless = without care |
| -able / -ible | can be done | washable = can be washed |
| -er / -or | person who does | teacher = person who teaches |
| -tion / -sion | the act of | creation = the act of creating |
| -ness | state of being | kindness = state of being kind |
Look at the tree above. If you learn just one root, you can unlock a whole family of words. That's the power of knowing word parts. On the ISEE, this means even one small clue inside a word can help you find the right answer!
Worked Example: Cracking a Tricky Word
Let's pretend you see this ISEE Synonym question: PREDICT most nearly means — (A) carry (B) write (C) say beforehand (D) look back. Let's use our Word Detective Strategy!
When Word Parts Help — and When to Be Careful
Using word parts is a powerful strategy, but like any tool, it works better in some situations than others. Let's look at when it shines and when you should be careful.
| ✅ When It Works Great | ⚠️ Watch Out For |
|---|---|
| Words clearly built from Latin or Greek parts, like "submarine" (sub + marine) | Words that look like they have a root but don't, like "carpet" — it does NOT come from "car" + "pet"! |
| Words with common prefixes you know, like "unhappy" or "replay" | Words where the prefix has multiple meanings, like "in-" can mean "not" (invisible) or "into" (inside) |
| Words with clear suffixes, like "hopeless" or "teacher" | Words that have changed a lot over time, like "breakfast" (it used to mean "break the fast") |
| When you can use word parts PLUS context clues together | When you're guessing without checking the answer choices |
Building Your Word Power Over Time
The word parts you learned today are just the beginning. As you get older and read more, you'll discover even more roots, prefixes, and suffixes. The cool thing is that every new word part you learn unlocks dozens of new words!
| What You Learn Now | What It Unlocks Later |
|---|---|
| "bio" = life | biology, biography, biodegradable, biome, antibiotic |
| "graph" = write | paragraph, autograph, geography, photograph, graphite |
| "tele" = far | telephone, television, telescope, telegram, telepathy |
| "micro" = small | microscope, microphone, microchip, microbe, microwave |
Practice Problems
Time to test your Word Detective skills! These questions look just like the ones on the real ISEE. Remember: use the word parts you learned, eliminate wrong answers, and always pick an answer — even if you're not 100% sure. You've got this!
What You Learned Today
You learned that English words are built from smaller pieces. The root carries the main meaning and sits in the middle or at the base of the word. A prefix goes at the beginning and changes the root's meaning. A suffix goes at the end and often changes how the word is used. On the ISEE, use the four-step Word Detective Strategy: spot the root, check the prefix, check the suffix, and put it all together.
Remember key prefixes like un- (not), re- (again), pre- (before), mis- (wrong), and dis- (opposite). Remember key suffixes like -ful (full of), -less (without), -able (can be), and -tion (act of). Even recognizing just one word part helps you eliminate wrong answer choices and boost your score. Always answer every question on the ISEE — there's no penalty for guessing. You've got this! 🌟