Quick Summary

The Latin root fus means “pour.” This Latin root is the word origin of a good number of English vocabulary words, including fusion, fuse, and confuse. The root fus is easily recalled via the word refuse, for to refuse to do something asked of you is to “pour” the request right back to the person doing the requesting!

What the "Fus" Is All About

The Latin root fus means “pour.” It is my hope that you will no longer be confused about this root by the end of this podcast, but rather that it will be infused into your memory!

When two types of metal are fused, they are “poured” together so as to form one. The energy released during the fusion or “pouring” together of two hydrogen atoms into one helium atom is the power that runs the stars, including our sun. Only one-trillionth of the solar energy released suffuses our planet, that is, is “poured” out to bathe us in its photons. The energy released infuses or is “poured” into all the plants on our planet, starting the process of photosynthesis whereby plants make their own energy. Such an infusion of solar light makes all life possible on our planet.

Imagine you find a ticking bomb and you have to defuse or “pour” off its ability to blow up. Your first inclination might be to refuse to do it, “pouring” the task back to someone else. If you get past the understandable refusal, you might find the actual job to be confusing what with the myriad of wires involved, that is, you are finding that there is just too much information being thoroughly “poured” into your own brain circuits, making the job impossible! Imagine an effusive James Bond showing up on the scene in the last ticking seconds, “pouring” out his willingness to defuse the bomb! He manages to do just that, at which point you offer him profuse praise, “pouring” it forth for not only having saved the day, but also for saving your life!

Now that this information about the root fus is diffuse throughout your memory or “poured” throughout it, you should have no trouble or further fuss about fus!

  1. fuse: “pour” into one
  2. fusion: the act of “pouring” together
  3. suffuse: “pour” out from below, or “pour” out
  4. infuse: to “pour” in
  5. infusion: act of “pouring” in
  6. defuse: “pour” from
  7. refuse: to “pour” back
  8. refusal: a “pouring” back
  9. confuse: to thoroughly “pour” too much
  10. confused: having been “thoroughly” poured so that there is too much information
  11. effusive: “pour” out
  12. defuse: “pour” off or from
  13. profuse: “pour” forth
  14. diffuse: “poured” apart throughout something


  • suffuse

    If something, such as warmth, color, or liquid, suffuses a material, it gradually spreads through or covers it; if you are suffused with a feeling, you are full of that feeling.

  • effusive

    Someone who is effusive expresses happiness, pleasure, admiration, praise, etc., in an extremely enthusiastic way.

  • transfuse

    When something is transfused to another thing, it is given, put, or imparted to it; for example, you can transfuse blood or a love of reading from one person to another.

  • diffuse

    When something is diffuse, it is widely spread out and scattered.

  • profusion

    A profusion of something is a very large quantity or variety of it.

  • infusion

    An infusion is the introduction or pouring of one thing into another—such as new ideas brought into a workplace or poured purple dye spreading throughout a glass of water.

  • confuse

    Something that confuses you is hard to understand; it is so unclear that you cannot figure it out.

  • confusion

    disorder resulting from a failure to behave predictably

  • defuse

    remove the triggering device from

  • diffusion

    (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration

  • effusion

    an unrestrained expression of emotion

  • fuse

    mix together different elements

  • fusion

    an occurrence that involves the production of a union

  • infuse

    teach and impress by frequent repetitions or admonitions

  • profuse

    produced or growing in extreme abundance

  • refuse

    food that is discarded (as from a kitchen)

  • suffusion

    the process of permeating or infusing something with a substance

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