*SET-U

English word origin

Etymology of defy

From Old French desfier, from Vulgar Latin *disfidare (“renounce one's faith”), from Latin dis- (“away”) + fidus (“faithful”). Meaning shifted in the 14th century from "be disloyal" to "challenge". Contrast confide, fide

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 ↗
noun

A challenge.

verb

To challenge (someone) or brave (a hazard or opposition). · To refuse to obey. · To not conform to or follow a pattern, set of rules or expectations. · To renounce or dissolve all bonds of affiance, faith, or obligation with; to reject, refuse, or renounce.

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

From Old French desfier, from Vulgar Latin *disfidare (“renounce one's faith”), from Latin dis- (“away”) + fidus (“faithful”). Meaning shifted in the 14th century from "be disloyal" to "challenge". Contrast confide, fidelity, faith.

Relationships mentioned by the source

These are extracted mentions, not a timeline or a verified sequence of immediate parents.

Inspect preserved source fields

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

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        "3": "*bʰeydʰ-"
      },
      "expansion": ""
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "fro",
        "3": "desfier"
      },
      "expansion": "Old French desfier"
    },
    {
      "name": "der",
      "args": {
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        "2": "la-vul",
        "3": "*disfidare",
        "4": "",
        "5": "renounce one's faith"
      },
      "expansion": "Vulgar Latin *disfidare (“renounce one's faith”)"
    },
    {
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        "3": "dis-",
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    }
  ],
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    ],
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    ],
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    ],
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      "confide#English"
    ],
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      "fidelity#English"
    ],
    [
      "faith",
      "faith#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A challenge."
      ],
      "tags": [
        "obsolete"
      ],
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    {
      "pos": "verb",
      "glosses": [
        "To challenge (someone) or brave (a hazard or opposition).",
        "To refuse to obey.",
        "To not conform to or follow a pattern, set of rules or expectations.",
        "To renounce or dissolve all bonds of affiance, faith, or obligation with; to reject, refuse, or renounce."
      ],
      "tags": [
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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 defy →

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
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Import run
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID
w-ZGVmeQ