*SET-U

English word origin

Etymology of idle

From Middle English idel, ydel, from Old English īdel, from Proto-West Germanic *īdl, from Proto-Germanic *īdlaz. Cognate with Dutch ijdel (“vain, meaningless”), ijl (“rareified, skinny”), iel (“thin, slender”); German L

3 source sectionsExtended source reportWiktionary 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 ↗
adj

Empty, vacant. · Not being used appropriately; not occupied; (of time) with no, no important, or not much activity. · Not engaged in any occupation or employment; unemployed; inactive; doing nothing in particular. · Averse to work, labor or employment; lazy; slothful.

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

From Middle English idel, ydel, from Old English īdel, from Proto-West Germanic *īdl, from Proto-Germanic *īdlaz. Cognate with Dutch ijdel (“vain, meaningless”), ijl (“rareified, skinny”), iel (“thin, slender”); German Low German iedel (“vain, idle”); German eitel (“vain, conceited”); and possibly Old Norse illr ("bad"; > English ill).

Relationships mentioned by the source

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

  • Inherited-form mentionidelenm
  • Inherited-form mentionīdelang
  • Inherited-form mention*īdlgmw-pro
  • Inherited-form mention*īdlazgem-pro
  • Cognate mentionijdelnl · vain, meaningless
  • Cognate mentioneitelde · vain, conceited
  • Cognate mentionillrnon
  • Cognate mentionillen

This page abbreviates 2 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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      "expansion": "Middle English idel"
    },
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      "args": {
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        "2": "ang",
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      "expansion": "Old English īdel"
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    },
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        "1": "nds-de",
        "2": "iedel",
        "t": "vain, idle"
      },
      "expansion": "German Low German iedel (“vain, idle”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "eitel",
        "t": "vain, conceited"
      },
      "expansion": "German eitel (“vain, conceited”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "non",
        "2": "illr"
      },
      "expansion": "Old Norse illr"
    },
    {
      "name": "cog",
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        "1": "en",
        "2": "ill"
      },
      "expansion": "English ill"
    },
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      "name": "gloss",
      "args": {
        "1": "\"bad\"; > English <i class=\"Latn mention\" lang=\"en\">ill</i>"
      },
      "expansion": "(\"bad\"; > English ill)"
    }
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      "idel#Middle_English"
    ],
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    ],
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      "īdel",
      "idel#Old_English"
    ],
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      "*īdl",
      "Reconstruction:Proto-West Germanic/īdl"
    ],
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      "*īdlaz",
      "Reconstruction:Proto-Germanic/īdlaz"
    ],
    [
      "ijdel",
      "ijdel#Dutch"
    ],
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      "ijl",
      "ijl#Dutch"
    ],
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      "iel",
      "iel#Dutch"
    ],
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      "iedel",
      "iedel#Low_German"
    ],
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      "eitel#German"
    ],
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      "illr",
      "illr#Old_Norse"
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      "w:English language"
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        "Empty, vacant.",
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        "Averse to work, labor or employment; lazy; slothful."
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Source etymology 2

Original entry ↗
verb

To spend (time) in idleness; to waste; to consume. · To lose or spend time doing nothing, or without being employed in business. · Of an engine: to run at a slow speed, or out of gear; to tick over. · To cause (an engine) to idle (run at a slow speed, or out of gear).

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

From Middle English idelen, from Old English īdlian, from Proto-West Germanic *īdlēn. Cognate with German eiteln (“to make empty, free up”).

Relationships mentioned by the source

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

  • Inherited-form mentionidelenenm
  • Inherited-form mentionīdlianang
  • Inherited-form mention*īdlēngmw-pro
  • Cognate mentioneitelnde · to make empty, free up

This page abbreviates 1 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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    },
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      "Reconstruction:Proto-West Germanic/īdlēn"
    ],
    [
      "eiteln",
      "eiteln#German"
    ]
  ],
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  "lexical": [
    {
      "pos": "verb",
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        "To spend (time) in idleness; to waste; to consume.",
        "To lose or spend time doing nothing, or without being employed in business.",
        "Of an engine: to run at a slow speed, or out of gear; to tick over.",
        "To cause (an engine) to idle (run at a slow speed, or out of gear)."
      ],
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Source etymology 3

Original entry ↗
noun

The state of idling, of being idle. · The lowest selectable thrust or power setting of an engine. · An idle animation. · An idle game.

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

From Middle English idel, ydel, from Old English īdel (“idleness”), from the adjective (see above).

Relationships mentioned by the source

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

  • Inherited-form mentionidelenm
  • Inherited-form mentionīdelang · idleness
Inspect preserved source fields

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

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    },
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      },
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    }
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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 idle →

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-aWRsZQ