English word origin

Etymology of undie

From undies.

3 source sectionsBrief source recordWiktionary original ↗

In this entry · 3 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.

Source etymology 1

Original entry ↗

noun

Underwear.

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

From undies.

Inspect preserved source fields

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

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  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "Underwear."
      ],
      "tags": [
        "attributive",
        "informal",
        "often"
      ],
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Source etymology 2

Original entry ↗

noun

A spy, undercover agent.

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

From undercover.

Inspect preserved source fields

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

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  "links": [
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  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A spy, undercover agent."
      ],
      "tags": [
        "informal"
      ],
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}

Source etymology 3

Original entry ↗

verb

To come back to life after having died. · To become undead.

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

From un- + die.

Inspect preserved source fields

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

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      "name": "etymid",
      "args": {
        "1": "en",
        "2": "cometolife"
      },
      "expansion": ""
    },
    {
      "name": "pre",
      "args": {
        "1": "en",
        "2": "un",
        "3": "die",
        "id1": "reversive"
      },
      "expansion": "un- + die"
    }
  ],
  "links": [
    [
      "un-",
      "un-#English:_reversive"
    ],
    [
      "die",
      "die#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "verb",
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        "To come back to life after having died.",
        "To become undead."
      ],
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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 undie →

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-dW5kaWU