arbitrary

Summary

Merriam-Webster’s Word of the Day — "Arbitrary" (November 2, 2025)

Overview

This episode of Merriam-Webster’s Word of the Day explores the adjective "arbitrary." The host, Peter Sokolowski, delves into its definitions, usage in context, etymology, and evolution. The episode’s purpose is to enrich vocabulary and produce a clearer understanding of how “arbitrary” functions in the English language.

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Key Discussion Points & Insights

1. Definition and Modern Meaning

• "Arbitrary" is described as something not planned or chosen for a particular reason, not based on reason or evidence, or done without concern for what is fair or right.
  • [00:42] “Arbitrary is an adjective. It describes something that is not planned or chosen for a particular reason, is not based on reason or evidence, or is done without concern for what is fair or right.” — Peter Sokolowski

2. Example of Usage

• A sentence from Helen Castor's historical work is used to show how “arbitrary” applies to political power:
  • “Such devastatingly radical action could never be justified unless kingship became tyranny, rule by arbitrary will rather than law, threatening the interests of kingdom and people instead of defending them.” — [01:23]

3. Etymology and Historical Meaning

• The origin of "arbitrary" is traced back to Latin:
  • “The word arbitrary comes from the Latin noun arbiter, which means judge, and is the source of the English word arbiter, also meaning judge.” — [01:55]
• Initially, “arbitrary” meant depending upon choice or discretion (especially decisions left up to a judge), not yet carrying its modern, negative overtones.

4. Shift in Meaning

• Over time, the word expanded to describe decisions not based on law or reason, and currently can apply to anything determined by chance or whim.

5. Playful Commentary on Learning

• The use of judicial imagery (black robes and a powdered wig) to learn vocabulary is referenced humorously as potentially arbitrary, echoing the definition and etymology of the word itself.

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Notable Quotes & Memorable Moments

• [00:43] Definition Delivery:
  “Arbitrary is an adjective. It describes something that is not planned or chosen for a particular reason, is not based on reason or evidence, or is done without concern for what is fair or right.” — Peter Sokolowski

• [01:23] Historical Example Highlight:
  “Such devastatingly radical action could never be justified unless kingship became tyranny, rule by arbitrary will rather than law, threatening the interests of kingdom and people instead of defending them.” — from Helen Castor, highlighted by Peter Sokolowski

• [01:55] Etymology Note:
  “The word arbitrary comes from the Latin noun arbiter, which means judge, and is the source of the English word arbiter, also meaning judge.” — Peter Sokolowski

• [02:11] Modern Connotation:
  “Today, it can also be used for anything determined by or as if by chance or whim.” — Peter Sokolowski

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Timestamps for Key Segments

• [00:42] — Introduction of "arbitrary" and its chief meaning
• [01:23] — Notable usage example from English history
• [01:55] — Etymological background (Latin "arbiter")
• [02:11] — Explanation of expanded, modern use

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Tone and Style

Peter Sokolowski delivers definitions and etymology in a clear, concise, and slightly playful tone, ensuring accessibility and engagement for listeners. The use of both scholarly context and lighthearted examples caters to both casual word enthusiasts and serious learners.

Transcript

[A]

Foreign.

[B]

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[C]

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[B]

Today's Word is arbitrary. Spelled A R B I T R A R Y Arbitrary is an adjective. It describes something that is not planned or chosen for a particular reason, is not based on reason or evidence, or is done without concern for what is fair or right. Here's the word used in a sentence from the Eagle and the the Tragedy of Richard II and Henry IV by Helen Castor. The authority of the crown, contemporaries believed, was instituted by God to rule the kingdom and its people. England's sovereign was required to be both a warrior and a judge to protect the realm from external attack and internal anarchy. To depose the king, therefore, was to risk everything worldly, security and immortal soul by challenging the order of God's creation. Such devastatingly radical action could never be justified unless kingship became tyranny, rule by arbitrary will rather than law, threatening the interests of kingdom and people instead of defending them. Donning black robes and a powdered wig to learn about the word arbitrary might seem to be an arbitrary that is Random or capric choice, but it would in fact jibe with the word's etymology. The word arbitrary comes from the Latin noun arbiter, which means judge, and is the source of the English word arbiter, also meaning judge. In English, arbitrary first meant depending upon choice or discretion, and was specifically used to indicate the sort of decision as for punishment left up to the expert determination of a judge rather than defined by law. Today, it can also be used for anything determined by or as if by chance or whim. With your word of the day, I'm Peter Sokolowski.

[A]

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