*SET-U

English word origin

Etymology of idiot

Etymology tree Proto-Indo-European *swé Proto-Indo-European *swéd-yo-s Proto-Hellenic *hwédios Ancient Greek ἴδιος (ídios) Ancient Greek -ώτης (-ṓtēs) Ancient Greek ἰδιώτης (idiṓtēs) Latin idiotalbor. Old French idiotebo

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 person of low general intelligence. · A person who makes stupid decisions; a fool. · A person of the lowest intellectual standing, a person who lacks the capacity to develop beyond the mental age of a normal four-year-old; a person with an IQ below 30.

adj

Idiotic, stupid.

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

Etymology tree Proto-Indo-European *swé Proto-Indo-European *swéd-yo-s Proto-Hellenic *hwédios Ancient Greek ἴδιος (ídios) Ancient Greek -ώτης (-ṓtēs) Ancient Greek ἰδιώτης (idiṓtēs) Latin idiotalbor. Old French idiotebor. Middle English ydiote English idiot From Middle English idiote, ydiote, from Old French idiote (later idiot), from Latin idiota, from Ancient Greek ἰδιώτης (idiṓtēs, “a private citizen, one who has no professional knowledge, layman”), from ἴδιος (ídios, “one's own, pertaining to oneself, private”). Doublet of idiota. By surface analysis, idi- + -ot.

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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    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:ydiote",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *swé\nProto-Indo-European *swéd-yo-s\nProto-Hellenic *hwédios\nAncient Greek ἴδιος (ídios)\nAncient Greek -ώτης (-ṓtēs)\nAncient Greek ἰδιώτης (idiṓtēs)\nLatin idiotalbor.\nOld French idiotebor.\nMiddle English ydiote\nEnglish idiot\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"lbor.\", \"keyword_label\" : \"Learned borrowing from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"gloss\" : \"one's own, private\", \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"alt\" : \"*swéd-yo-s\", \"lang_name\" : \"Proto-Indo-European\", \"status\" : \"inline\", \"children\" : [ { \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*swé\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Hellenic\", \"term\" : \"*hwédios\", \"status\" : \"inline\", \"lang\" : \"grk-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"ἴδιος\", \"status\" : \"ok\", \"lang\" : \"grc\" }, { \"children\" : [ ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"-ώτης\", \"status\" : \"missing\", \"lang\" : \"grc\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"ἰδιώτης\", \"status\" : \"ok\", \"lang\" : \"grc\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"uder\" } ], \"lang_name\" : \"Latin\", \"term\" : \"idiota\", \"status\" : \"ok\", \"lang\" : \"la\" } ], \"keyword\" : \"lbor\" } ], \"lang_name\" : \"Old French\", \"term\" : \"idiote\", \"status\" : \"ok\", \"lang\" : \"fro\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"ydiote\", \"status\" : \"ok\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"English\", \"term\" : \"idiot\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"idiot\">"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "idiote"
      },
      "expansion": "Middle English idiote"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "fro",
        "3": "idiote"
      },
      "expansion": "Old French idiote"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "la",
        "3": "idiota"
      },
      "expansion": "Latin idiota"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἰδιώτης",
        "4": "",
        "5": "a private citizen, one who has no professional knowledge, layman"
      },
      "expansion": "Ancient Greek ἰδιώτης (idiṓtēs, “a private citizen, one who has no professional knowledge, layman”)"
    },
    {
      "name": "doublet",
      "args": {
        "1": "en",
        "2": "idiota"
      },
      "expansion": "Doublet of idiota"
    },
    {
      "name": "surf",
      "args": {
        "1": "en",
        "2": "idi-",
        "3": "-ot"
      },
      "expansion": "By surface analysis, idi- + -ot"
    },
    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:ydiote",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *swé\nProto-Indo-European *swéd-yo-s\nProto-Hellenic *hwédios\nAncient Greek ἴδιος (ídios)\nAncient Greek -ώτης (-ṓtēs)\nAncient Greek ἰδιώτης (idiṓtēs)\nLatin idiotalbor.\nOld French idiotebor.\nMiddle English ydiote\nEnglish idiot"
    }
  ],
  "links": [
    [
      "*swé",
      "Reconstruction:Proto-Indo-European/swé"
    ],
    [
      "*hwédios",
      "Reconstruction:Proto-Hellenic/hwédios"
    ],
    [
      "ἴδιος",
      "ἴδιος#Ancient_Greek"
    ],
    [
      "-ώτης",
      "-ώτης#Ancient_Greek"
    ],
    [
      "ἰδιώτης",
      "ἰδιώτης#Ancient_Greek"
    ],
    [
      "idiota",
      "idiota#Latin"
    ],
    [
      "idiote",
      "idiote#Old_French"
    ],
    [
      "ydiote",
      "ydiote#Middle_English"
    ],
    [
      "idiote",
      "idiote#Middle_English"
    ],
    [
      "ydiote",
      "ydiote#Middle_English"
    ],
    [
      "idiote",
      "idiote#Old_French"
    ],
    [
      "idiot",
      "idiot#Old_French"
    ],
    [
      "idiota",
      "idiota#Latin"
    ],
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      "ἰδιώτης",
      "ἰδιώτης#Ancient_Greek"
    ],
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      "ἴδιος#Ancient_Greek"
    ],
    [
      "idiota",
      "idiota#English"
    ],
    [
      "idi-",
      "idi-#English"
    ],
    [
      "-ot",
      "-ot#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A person of low general intelligence.",
        "A person who makes stupid decisions; a fool.",
        "A person of the lowest intellectual standing, a person who lacks the capacity to develop beyond the mental age of a normal four-year-old; a person with an IQ below 30."
      ],
      "tags": [
        "derogatory",
        "obsolete"
      ],
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    {
      "pos": "adj",
      "glosses": [
        "Idiotic, stupid."
      ],
      "tags": [
        "uncommon"
      ],
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  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
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    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 0,
    "glosses": 0
  }
}

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 idiot →

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-aWRpb3Q