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Word Roots

2 roots • 8 words

JECT

Root Meaning:

JECT comes from jacere, the Latin verb meaning “throw” or “hurl.” To reject something is to throw (or push) it back; to eject something is to throw (or drive) it out; and to inject something is to throw (or squirt) it into something else.

Etymology:

Latin
4 words derived from this root

Words from this root:

interject

/ˌɪn.tərˈdʒekt/
Definition:
To interrupt a conversation with a comment or remark.
Example:
His anger was growing as he listened to the conversation, and every so often he would interject a crude comment.
Explanation:
According to its Latin roots, *interject* ought to mean literally “throw between.” For most of the word's history, however, the only things that have been interjected have been comments dropped suddenly into a conversation.

conjecture

/kənˈdʒek.tʃər/
Definition:
To guess.
Example:
He was last heard of in Bogotá, and they conjectured that he had met his end in the Andes at the hands of the guerrillas.
Explanation:
Formed with the prefix *con-,* “together,” *conjecture* means literally “to throw together”—that is, to produce a theory by putting together a number of facts.

projection

/prəˈdʒek.ʃən/
Definition:
An estimate of what might happen in the future based on what is happening now.
Example:
The president has been hearing different deficit projections all week from the members of his economic team.

trajectory

/trəˈdʒek.tər.i/
Example:
Considering the likely range, trajectory, and accuracy of a bullet fired from a cheap handgun at 100 yards, the murder seemed incredible.
Explanation:
Formed with part of the prefix *trans-,* “across,” *trajectory* means a “hurling across.” By calculating the effect of gravity and other forces, the trajectory of an object launched into space at a known speed can be computed precisely.

TRACT

Root Meaning:

TRACT comes from trahere, the Latin verb meaning “drag or draw.” Something attractive draws us toward it. Something distracting pulls your attention away. And when you extract something from behind the sofa, you drag it out.

Etymology:

Latin
4 words derived from this root

Words from this root:

traction

/ˈtræk.ʃən/
Definition:
The friction that allows a moving thing to move over a surface without slipping.
Example:
The spinning wheels were getting no traction on the ice, and we began to slip backward down the hill.
Explanation:
A *tractor* is something that pulls something else. We usually use the word for a piece of farm machinery, but it's also the name of the part of a big truck that includes the engine and the cab.

retract

/rɪˈtrækt/
Definition:
(1) To pullback (something) into something larger. (2) To take back (something said or written).
Example:
She was forced to retract her comment about her opponent after it was condemned in the press.
Explanation:
The prefix *re-* (“back”) gives *retract* the meaning of “draw back.” Just as a cat retracts its claws into its paws when they aren't being used, a public figure may issue a *retraction* in order to say that he or she no longer wants to say something that has just been said.

protracted

/proʊˈtræk.tɪd/
Definition:
Drawn out, continued, or extended.
Example:
No one was looking forward to a protracted struggle for custody of the baby.
Explanation:
With its prefix *pro-*, “forward,” *protracted* usually applies to something drawn out forward in time. A protracted strike may cripple a company; a protracted rainy spell may rot the roots of vegetables; and a protracted lawsuit occasionally outlives the parties involved.

intractable

/ɪnˈtræk.tə.bəl/
Definition:
Not easily handled, led, taught, or controlled.
Example:
Corruption in the army was the country's intractable problem, and for many years all foreign aid had ended up in the colonels' pockets.
Explanation:
*Intractable* simply means “untreatable,” and even comes from the same root. The word may describe both people and conditions. A cancer patient may suffer intractable pain that doctors are unable to treat.

Audio Learning

Unit 2 - Split 3

Conversation Script

Follow along with Alex and Ben

Alex
Welcome back to Word Builders, the show where we get our vocabulary in motion. I’m Alex.
Ben
And I’m Ben.
Alex
Ben, let me throw a question at you. What do a rude comment, a wild guess, and a rocket launch all have in common?
Ben
A rude comment, a guess, and a rocket launch. They can all be unpredictable and cause a lot of drama?
Alex
An excellent guess in itself! But the answer I was looking for is a Latin root: JECT, which means “to throw” or “to hurl.” You interject a comment, you form a conjecture by throwing ideas together, and a rocket follows a trajectory.
Ben
Ah, it's all about throwing! That's a great connection. What's our other root today? Is it another action word?
Alex
It is. It’s TRACT, from the Latin verb meaning “to drag or draw.” So today’s episode is all about words of force and motion: throwing and dragging.
Ben
This sounds like a dynamic episode. Let's start with JECT.
Alex
Perfect. As we said, JECT means “to throw.” It gives us common words like reject, to throw something back, and eject, to throw something out. Our first word today is interject. I-N-T-E-R-J-E-C-T.
Ben
To interject is to interrupt a conversation with a remark. The prefix 'inter-' means 'between', so you're literally 'throwing' a comment 'between' what other people are saying.
Alex
You've got it exactly right. For instance, his anger was growing as he listened, and every so often he would interject a crude comment. It’s almost always used for words, not for physically throwing things between people.
Ben
Luckily for us! What's next?
Alex
Our next word is conjecture. C-O-N-J-E-C-T-U-R-E.
Ben
Conjecture. I know this means to guess, but it sounds more formal than just guessing.
Alex
It is. To form a conjecture is to produce a theory by putting together a number of different facts. The prefix 'con-' means 'together', so you're 'throwing together' the evidence to see what theory it creates.
Ben
Like a detective trying to solve a crime. The example says they conjectured he met his end in the Andes. It was a theory based on the limited facts they had.
Alex
Precisely. Next up is projection. P-R-O-J-E-C-T-I-O-N.
Ben
A projection is like a forecast, an estimate of what will happen in the future based on what’s happening now.
Alex
That’s the most common meaning today. As in, the president has been hearing different deficit projections all week. The core idea of the word is always about something being sent or 'thrown forward'.
Ben
So a film projection throws an image forward onto a screen, and a budget projection throws numbers forward into the future. That makes sense.
Alex
It does. Our last word for this root is trajectory. T-R-A-J-E-C-T-O-R-Y.
Ben
The trajectory is the path a thrown object makes through the air. The path of a baseball or a bullet.
Alex
Correct. With the prefix *trans-*, meaning “across,” a trajectory is literally a “hurling across.” By calculating forces like gravity, the trajectory of something, like a spacecraft, can be figured out with amazing precision.
Ben
Okay, that's a lot of throwing. I feel like we need a different kind of motion now. What about that 'dragging' root?
Alex
A perfect transition. Let's move on to TRACT, from the Latin verb *trahere*, meaning “to drag or draw.” This gives us words like *attractive*, which draws us toward something, or *extract*, to drag something out.
Ben
Our first word from this root is traction. T-R-A-C-K-S-H-U-N... wait, no, T-R-A-C-T-I-O-N.
Alex
That's the one. Traction is the friction that allows a moving thing to move over a surface without slipping.
Ben
Like when you’re driving in the snow and your tires can’t get a grip. You could say, the spinning wheels were getting no traction on the ice.
Alex
Exactly. And it’s directly related to the word *tractor*, which is a vehicle designed specifically for pulling or dragging heavy things. It needs good traction to do its job.
Ben
So a tractor provides traction. Got it.
Alex
Next up is retract. R-E-T-R-A-C-T.
Ben
To retract means to pull something back, right?
Alex
It does, and in two important ways. A cat can retract its claws, pulling them back into its paws. But a person can also retract a statement, which means to formally take back something they said. The prefix *re-* means “back,” so in both cases, you are “drawing back.”
Ben
So after a politician says something foolish, they might be forced to retract the comment.
Alex
It happens all the time. Our next word is an adjective: protracted. P-R-O-T-R-A-C-T-E-D.
Ben
Protracted. With the prefix 'pro-' meaning 'forward,' does this mean drawn forward?
Alex
Exactly, specifically drawn out or extended in time. It's used to describe something that goes on for a long, often unwelcome, time. For instance, no one was looking forward to a protracted struggle for custody of the baby.
Ben
So you can have a protracted negotiation or a protracted legal battle. It means it's dragging on.
Alex
It does. And for our last word, what happens when something can't be dragged or controlled? The word is intractable. I-N-T-R-A-C-T-A-B-L-E.
Ben
Intractable. The 'in-' prefix means 'not', so... not able to be dragged?
Alex
That’s the core of it. Intractable means not easily handled, led, taught, or controlled. You can have an intractable child who won't listen, or you can have an intractable problem, like corruption in a government, that seems impossible to solve or treat.
Ben
The text also mentions intractable pain, meaning pain that doctors can't get under control. That's a very powerful and serious word.
Alex
It is. It describes a problem that resists any attempt to move or manage it. Time for a quick review?
Ben
Let's do it. From the root JECT, to throw.
Alex
We had interject, to throw a comment between. Conjecture, to throw ideas together to make a guess. Projection, an estimate thrown forward. And trajectory, the path of something hurled across the sky.
Ben
And from the root TRACT, to drag or draw.
Alex
We learned traction, the grip that lets you pull forward. Retract, to draw something back. Protracted, meaning drawn out over time. And intractable, describing a problem that cannot be handled or treated.
Ben
From throwing a guess to dragging out a negotiation, these words really capture a sense of action.
Alex
They certainly do. And that’s all the time we have for today on Word Builders.
Ben
Thanks for listening.
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