*SET-U

English word origin

Etymology of crazy

From craze (“to crush”) + -y, akin to being "crazed up". Compare cracked up (“suffered a mental breakdown; be insane”), crackpot. Compare typologically Russian чо́кнутый (čóknutyj).

1 source sectionExtended source reportWiktionary original ↗
In this entry · 1 source sections

The source etymologies

Wiktionary via Kaikki / Wiktextract

The source reports below are imported and unreviewed by *SET-U. Separate numbered origins and differing source variants are preserved; agreement within this extraction is not independent corroboration.

Unnumbered source etymology

Original entry ↗
adj

Of unsound mind; insane; demented. · Out of control. · Very excited or enthusiastic. · In love; experiencing romantic feelings.

adv

Very, extremely.

noun

An insane or eccentric person; a crackpot. · Eccentric behaviour; lunacy; craziness.

Selected source glosses provide context, not a complete modern definition inventory

From craze (“to crush”) + -y, akin to being "crazed up". Compare cracked up (“suffered a mental breakdown; be insane”), crackpot. Compare typologically Russian чо́кнутый (čóknutyj).

This page abbreviates 3 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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      "args": {
        "1": "en",
        "2": "craze<t:to crush>",
        "3": "-y<id:adjectival>"
      },
      "expansion": "craze (“to crush”) + -y"
    },
    {
      "name": "m+",
      "args": {
        "1": "ru",
        "2": "чо́кнутый"
      },
      "expansion": "Russian чо́кнутый (čóknutyj)"
    }
  ],
  "links": [
    [
      "craze",
      "craze#English"
    ],
    [
      "-y",
      "-y#English:_adjectival"
    ],
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      "cracked up",
      "crack up#English"
    ],
    [
      "crackpot",
      "crackpot#English"
    ],
    [
      "чо́кнутый",
      "чокнутый#Russian"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
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        "Of unsound mind; insane; demented.",
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        "Very excited or enthusiastic.",
        "In love; experiencing romantic feelings."
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      "pos": "adv",
      "glosses": [
        "Very, extremely."
      ],
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        "slang"
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    },
    {
      "pos": "noun",
      "glosses": [
        "An insane or eccentric person; a crackpot.",
        "Eccentric behaviour; lunacy; craziness."
      ],
      "tags": [
        "countable",
        "slang",
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      ],
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  "omittedAuxiliaryFields": {
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    "lexicalRecords": 0,
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  }
}

Where this record stops

This page does not supply an independently verified sound-change sequence, first-use manuscript or complete family tree unless a cited analysis explicitly establishes one. Missing detail here is a limit of this record—not a claim that humanity knows nothing more.

An older meaning does not determine what a word must mean today. Follow the sources, preserve disagreements, and keep ancestry separate from interpretation.

Contribute located evidence for crazy →

Source and snapshot

Imported from Wiktionary contributors; extracted by Tatu Ylonen / Wiktextract / Kaikki.org. Selected fields are reformatted and grouped; wording, source identity and etymology sections are retained. CC-BY-SA-4.0 applies to the imported source material.

Dump: 2026-10-01 · Extracted: 2026-10-30. These are snapshot dates, not the word’s first attestation or the page’s revision date.

Source entry and bibliography ↗Wiktionary revision history ↗Acquisition and rights ledger
Machine-source provenance
Source SHA-256
5ff2c072f8099f2d2ce484bd6957bf179f046d2ad37bc36555edf8bb84cb5291
Import run
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID
w-Y3Jhenk