*SET-U

English word origin

Etymology of idea

Etymology tree Proto-Indo-European *weyd-der. Ancient Greek ῐ̓δεῖν (ĭdeîn) Ancient Greek ἰδέα (idéa)der. Latin ideabor. English idea Borrowed from Latin idea (“a (Platonic) idea; archetype”), from Ancient Greek ἰδέα (idé

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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

An abstract archetype of a given thing, compared to which real-life examples are seen as imperfect approximations; pure essence, as opposed to actual examples. · The conception of someone or something as representing a perfect example; an ideal. · The form or shape of something; a quintessential aspect or characteristic. · An image of an object that is formed in the mind or recalled by the memory.

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

Etymology tree Proto-Indo-European *weyd-der. Ancient Greek ῐ̓δεῖν (ĭdeîn) Ancient Greek ἰδέα (idéa)der. Latin ideabor. English idea Borrowed from Latin idea (“a (Platonic) idea; archetype”), from Ancient Greek ἰδέα (idéa, “notion, pattern”), from εἴδω (eídō, “to see”), ultimately from Proto-Indo-European *weyd- (“to know; see”). Cognate with French idée. Doublet of idée. Related to idol, idolum, and eidolon.

Relationships mentioned by the source

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

This page abbreviates 5 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.

{
  "templates": [
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":bor",
        "3": "la:idea",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *weyd-der.\nAncient Greek ῐ̓δεῖν (ĭdeîn)\nAncient Greek ἰδέα (idéa)der.\nLatin ideabor.\nEnglish idea\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"gloss\" : \"notion, pattern\", \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*weyd-\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"ῐ̓δεῖν\", \"status\" : \"inline\", \"lang\" : \"grc\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"ἰδέα\", \"status\" : \"ok\", \"lang\" : \"grc\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Latin\", \"term\" : \"idea\", \"status\" : \"ok\", \"lang\" : \"la\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"English\", \"term\" : \"idea\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"idea\">"
    },
    {
      "name": "root",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*weyd-"
      },
      "expansion": ""
    },
    {
      "name": "bor+",
      "args": {
        "1": "en",
        "2": "la",
        "3": "idea",
        "4": "",
        "5": "a (Platonic) idea; archetype"
      },
      "expansion": "Borrowed from Latin idea (“a (Platonic) idea; archetype”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἰδέα",
        "4": "",
        "5": "notion, pattern"
      },
      "expansion": "Ancient Greek ἰδέα (idéa, “notion, pattern”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*weyd-",
        "4": "",
        "5": "to know; see"
      },
      "expansion": "Proto-Indo-European *weyd- (“to know; see”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fr",
        "2": "idée"
      },
      "expansion": "French idée"
    },
    {
      "name": "doublet",
      "args": {
        "1": "en",
        "2": "idée"
      },
      "expansion": "Doublet of idée"
    },
    {
      "name": "doublet",
      "args": {
        "1": "en",
        "2": "idol",
        "3": "idolum",
        "4": "eidolon",
        "notext": "1"
      },
      "expansion": "idol, idolum, and eidolon"
    },
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":bor",
        "3": "la:idea",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *weyd-der.\nAncient Greek ῐ̓δεῖν (ĭdeîn)\nAncient Greek ἰδέα (idéa)der.\nLatin ideabor.\nEnglish idea"
    }
  ],
  "links": [
    [
      "*weyd-",
      "Reconstruction:Proto-Indo-European/weyd-"
    ],
    [
      "ῐ̓δεῖν",
      "ἰδεῖν#Ancient_Greek"
    ],
    [
      "ἰδέα",
      "ἰδέα#Ancient_Greek"
    ],
    [
      "idea",
      "idea#Latin"
    ],
    [
      "idea",
      "idea#Latin"
    ],
    [
      "ἰδέα",
      "ἰδέα#Ancient_Greek"
    ],
    [
      "εἴδω",
      "εἴδω#Ancient_Greek"
    ],
    [
      "*weyd-",
      "Reconstruction:Proto-Indo-European/weyd-"
    ],
    [
      "idée",
      "idée#French"
    ],
    [
      "idée",
      "idée#English"
    ],
    [
      "idol",
      "idol#English"
    ],
    [
      "idolum",
      "idolum#English"
    ],
    [
      "eidolon",
      "eidolon#English"
    ]
  ],
  "references": [],
  "descendants": [
    {
      "lang": "Tok Pisin",
      "lang_code": "tpi",
      "word": "aidia"
    },
    {
      "lang": "Burmese",
      "lang_code": "my",
      "word": "အိုင်ဒီယာ",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "uingdiya"
    },
    {
      "lang": "Japanese",
      "lang_code": "ja",
      "word": "アイディア",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "aidia"
    },
    {
      "lang": "Japanese",
      "lang_code": "ja",
      "word": "アイデア",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "aidea"
    },
    {
      "lang": "Korean",
      "lang_code": "ko",
      "word": "아이디어",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "aidieo"
    },
    {
      "lang": "Thai",
      "lang_code": "th",
      "word": "ไอเดีย",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "ai-diia"
    }
  ],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "An abstract archetype of a given thing, compared to which real-life examples are seen as imperfect approximations; pure essence, as opposed to actual examples.",
        "The conception of someone or something as representing a perfect example; an ideal.",
        "The form or shape of something; a quintessential aspect or characteristic.",
        "An image of an object that is formed in the mind or recalled by the memory."
      ],
      "tags": [
        "obsolete"
      ],
      "recordId": "6c491b0a8d67eb3c899a428689aaf0d310b7f4899f203f329c146ba24597a294",
      "rawRecordSha256": "620677ed1890b269ca945aa666cd5db4a51faeb08fd68b581a4cf54f6ba2303f",
      "sourceRecordOrdinal": 122984
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 5,
    "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 idea →

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-aWRlYQ