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Definition & Meaning: Equ-i Word Root

The root word Equ-i comes from the Latin word equ, which means equal. This Latin root is the origin of many English words, including adequate, equator, and equality. The root equ is easily recalled through the word equation, where both sides are, by definition, “equal” to one another.

Math classes are filled with words that have the Latin root equ in them. Math teachers frequently discuss equations, expressions like x = 2y or y = mx + b, where both sides of the equation are “equal” to one another. For instance, if x = y – 2, you can equate x with a number that is 2 less than y, meaning x “equals” y – 2. Geometry teachers often mention equilateral triangles, whose three sides are “equal” in length to one another. This means the measurement of each side is equivalent, or “equal” in value, to the others.

To better understand, consider the word equanimity, which can be broken down into:

  • Equ: Equal
  • Anim: Mind
  • -ity: State or quality

Equanimity is the “state of equal mind,” meaning one’s mind does not become agitated but remains even and peaceful.

Equ-i root word tree diagram featuring the words Equal, Equation, and Equilibrium

Words Based on the Equ-i Word Root

Commonly Used Words Based on the Equ-i Word Root

  • Equal: Of being the same, or “equal”
  • Equation: Condition of two sides of a mathematical expression being “equal” to one another
  • Equate: To make two things “equal” to one another
  • Equilateral: Having sides that are “equal”
  • Equivalent: Having “equal” value
  • Equator: Line of latitude which divides planet Earth into “equal” halves
  • Equinox: A time of “equal” light and darkness
  • Equality: State or condition of being “equal”
  • Adequate: “Equal” to what is needed
  • Equanimity: A state of the mind being “equal” or peaceful
  • Equilibrium: A state of being “equally” or evenly balanced
  • Equiangular: Of a polygon, having all interior angles equal

Archaic Words Based on the Equ-i Word Root

    Technical Words/Jargon Based on the Equ-i Word Root

      Related Word Roots with Similar Meanings

      1. Iso- (Greek: ‘equal’)

      • Isometric: Having equal dimensions
      • Isosceles: Having two sides of equal length
      • Isotonic: Having equal tension

      2. Par- (Latin: ‘equal’)

      • Parallel: Extending in the same direction, equidistant at all points
      • Parody: A humorous imitation that is equal in form but not in content
      • Par: The value assigned to a currency or security, representing its equal worth

      3. Hom- (Greek: ‘same’)

      • Homogeneous: Of the same kind or nature
      • Homonym: Each of two words having the same spelling but different meanings
      • Homophone: Each of two or more words having the same pronunciation but different meanings

      We hope this article on the commonly used Equ-i Root Word has been helpful in remembering the words based on this root and enhancing your vocabulary. Linking words with their roots can make it easier to understand and remember their meanings, thus enriching your language skills.

      Want to explore more Word Roots?

      Explore Our Full Word Roots Section

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