*SET-U

English word origin

Etymology of un-

From Middle English un-, from Old English un-, from Proto-West Germanic *un-, from Proto-Germanic *un-, from Proto-Indo-European *n̥-. Cognate with Scots un-, on- (“un-”), North Frisian ün-, Saterland Frisian uun-, West

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 ↗
prefix

not · lack of · contrary to traditional norms; unconventional

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

From Middle English un-, from Old English un-, from Proto-West Germanic *un-, from Proto-Germanic *un-, from Proto-Indo-European *n̥-. Cognate with Scots un-, on- (“un-”), North Frisian ün-, Saterland Frisian uun-, West Frisian ûn-, on-, Dutch on-, Low German un-, on-, German un-, Danish u-, Swedish o-, Norwegian u-, Icelandic ó-. More distant cognate with Latin in-, Ancient Greek ἀ- (a-) (whence English a-, modern Greek α- (a-)) and Sanskrit अ- (a-). Doublet of in- and a-.

Relationships mentioned by the source

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

  • Inherited-form mentionun-enm
  • Inherited-form mentionun-ang
  • Inherited-form mention*un-gmw-pro
  • Inherited-form mention*un-gem-pro
  • Inherited-form mention*n̥-ine-pro
  • Cognate mentionun-sco
  • Cognate mentionün-frr
  • Cognate mentionuun-stq
  • Cognate mentionûn-fy
  • Cognate mentionon-nl
  • Cognate mentionun-nds
  • Cognate mentionun-de
  • Cognate mentionu-da
  • Cognate mentiono-sv
  • Cognate mentionu-no
  • Cognate mentionó-is
  • Cognate mentionin-la
  • Cognate mentionἀ-grc
  • Cognate mentiona-en
  • Cognate mentionα-el
  • Cognate mentionअ-sa
  • Doublet mentionin-en
  • Doublet mentiona-en
Inspect preserved source fields

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

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    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:un-<id:not>",
        "id": "negative"
      },
      "expansion": "[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Germanic\", \"term\" : \"*un-\", \"lang\" : \"gem-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-West Germanic\", \"term\" : \"*un-\", \"lang\" : \"gmw-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Old English\", \"term\" : \"un-\", \"lang\" : \"ang\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Middle English\", \"term\" : \"un-\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"un-\", \"lang\" : \"en\" }\" data-id=\"negative\" data-lang=\"en\" data-title=\"un-\" id=\"English:_negative\">"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "un-"
      },
      "expansion": "Middle English un-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ang",
        "3": "un-"
      },
      "expansion": "Old English un-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gmw-pro",
        "3": "*un-"
      },
      "expansion": "Proto-West Germanic *un-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gem-pro",
        "3": "*un-"
      },
      "expansion": "Proto-Germanic *un-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*n̥-"
      },
      "expansion": "Proto-Indo-European *n̥-"
    },
    {
      "name": "cog",
      "args": {
        "1": "sco",
        "2": "un-"
      },
      "expansion": "Scots un-"
    },
    {
      "name": "cog",
      "args": {
        "1": "frr",
        "2": "ün-"
      },
      "expansion": "North Frisian ün-"
    },
    {
      "name": "cog",
      "args": {
        "1": "stq",
        "2": "uun-"
      },
      "expansion": "Saterland Frisian uun-"
    },
    {
      "name": "cog",
      "args": {
        "1": "fy",
        "2": "ûn-"
      },
      "expansion": "West Frisian ûn-"
    },
    {
      "name": "cog",
      "args": {
        "1": "nl",
        "2": "on-"
      },
      "expansion": "Dutch on-"
    },
    {
      "name": "cog",
      "args": {
        "1": "nds",
        "2": "un-"
      },
      "expansion": "Low German un-"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "un-"
      },
      "expansion": "German un-"
    },
    {
      "name": "cog",
      "args": {
        "1": "da",
        "2": "u-"
      },
      "expansion": "Danish u-"
    },
    {
      "name": "cog",
      "args": {
        "1": "sv",
        "2": "o-"
      },
      "expansion": "Swedish o-"
    },
    {
      "name": "cog",
      "args": {
        "1": "no",
        "2": "u-"
      },
      "expansion": "Norwegian u-"
    },
    {
      "name": "cog",
      "args": {
        "1": "is",
        "2": "ó-"
      },
      "expansion": "Icelandic ó-"
    },
    {
      "name": "cog",
      "args": {
        "1": "la",
        "2": "in-"
      },
      "expansion": "Latin in-"
    },
    {
      "name": "cog",
      "args": {
        "1": "grc",
        "2": "ἀ-"
      },
      "expansion": "Ancient Greek ἀ- (a-)"
    },
    {
      "name": "cog",
      "args": {
        "1": "en",
        "2": "a-"
      },
      "expansion": "English a-"
    },
    {
      "name": "cog",
      "args": {
        "1": "el",
        "2": "α-"
      },
      "expansion": "Greek α- (a-)"
    },
    {
      "name": "cog",
      "args": {
        "1": "sa",
        "2": "अ-"
      },
      "expansion": "Sanskrit अ- (a-)"
    },
    {
      "name": "doublet",
      "args": {
        "1": "en",
        "2": "in-",
        "3": "a-"
      },
      "expansion": "Doublet of in- and a-"
    },
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      "args": {
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        "2": ":inh",
        "3": "enm:un-<id:not>",
        "id": "negative"
      },
      "expansion": ""
    }
  ],
  "links": [
    [
      "un-",
      "un-#Middle_English"
    ],
    [
      "un-",
      "un-#Old_English"
    ],
    [
      "*un-",
      "Reconstruction:Proto-West Germanic/un-"
    ],
    [
      "*un-",
      "Reconstruction:Proto-Germanic/un-"
    ],
    [
      "*n̥-",
      "Reconstruction:Proto-Indo-European/n̥-"
    ],
    [
      "un-",
      "un-#Scots"
    ],
    [
      "on-",
      "on-#Scots"
    ],
    [
      "ün-",
      "ün-#North_Frisian"
    ],
    [
      "uun-",
      "uun-#Saterland_Frisian"
    ],
    [
      "ûn-",
      "ûn-#West_Frisian"
    ],
    [
      "on-",
      "on-#West_Frisian"
    ],
    [
      "on-",
      "on-#Dutch"
    ],
    [
      "un-",
      "un-#Low_German"
    ],
    [
      "on-",
      "on-#Low_German"
    ],
    [
      "un-",
      "un-#German"
    ],
    [
      "u-",
      "u-#Danish"
    ],
    [
      "o-",
      "o-#Swedish"
    ],
    [
      "u-",
      "u-#Norwegian"
    ],
    [
      "ó-",
      "ó-#Icelandic"
    ],
    [
      "in-",
      "in-#Latin"
    ],
    [
      "ἀ-",
      "ἀ-#Ancient_Greek"
    ],
    [
      "a-",
      "a-#English"
    ],
    [
      "α-",
      "α-#Greek"
    ],
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      "अ-",
      "अ-#Sanskrit"
    ],
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      "in-",
      "in-#English"
    ],
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      "a-",
      "a-#English"
    ]
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        "not",
        "lack of",
        "contrary to traditional norms; unconventional"
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Source etymology 2

Original entry ↗
prefix

the inverse of a specified action · deprive of, release from, free from, remove from, extract from · intensifying a verb that already suggests opposition or removal

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

From Middle English on-, from Old English on-, ond-, and- (“against, facing, toward; in return, back, without”), from Proto-West Germanic *anda-, from Proto-Germanic *anda-, *andi- (“against”), from Proto-Indo-European *h₂énti (“across, forth, forward, ahead”), from *h₂énts (“end, limit, forehead”). In some cases the meaning is influenced by un- (“not”, etymology 1).

Relationships mentioned by the source

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

  • Inherited-form mentionon-enm
  • Inherited-form mentionon-ang
  • Inherited-form mention*anda-gmw-pro
  • Inherited-form mention*anda-gem-pro
  • Inherited-form mention*h₂éntiine-pro
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:on-<ety:inh<ang:on-<id:and->>>",
        "id": "reversal prefix"
      },
      "expansion": "[Appendix:Glossary#derived_terms|Derived]] from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"id\" : \"front\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*h₂ent-\", \"gloss\" : \"face, forehead; front\", \"lang\" : \"ine-pro\" }, { \"id\" : \"amphikinetic\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-s\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*h₂énts\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Proto-Germanic\", \"term\" : \"*anda-\", \"status\" : \"ok\", \"lang\" : \"gem-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-West Germanic\", \"term\" : \"*anda-\", \"status\" : \"ok\", \"lang\" : \"gmw-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Old English\", \"term\" : \"and-\", \"status\" : \"ok\", \"lang\" : \"ang\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"status\" : \"ok\", \"lang_name\" : \"Old English\", \"term\" : \"on-\", \"lang\" : \"ang\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"on-\", \"status\" : \"inline\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"un-\", \"lang\" : \"en\" }\" data-id=\"reversal prefix\" data-lang=\"en\" data-title=\"un-\" id=\"English:_reversal_prefix\">"
    },
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      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "on-"
      },
      "expansion": "Middle English on-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ang",
        "3": "on-"
      },
      "expansion": "Old English on-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gmw-pro",
        "3": "*anda-"
      },
      "expansion": "Proto-West Germanic *anda-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gem-pro",
        "3": "*anda-"
      },
      "expansion": "Proto-Germanic *anda-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*h₂énti",
        "4": "",
        "5": "across, forth, forward, ahead"
      },
      "expansion": "Proto-Indo-European *h₂énti (“across, forth, forward, ahead”)"
    },
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      "name": "ety",
      "args": {
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        "2": ":inh",
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      "expansion": ""
    }
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  "links": [
    [
      "on-",
      "on-#Middle_English"
    ],
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      "on-",
      "on-#Old_English"
    ],
    [
      "ond-",
      "ond-#Old_English"
    ],
    [
      "and-",
      "and-#Old_English"
    ],
    [
      "*anda-",
      "Reconstruction:Proto-West Germanic/anda-"
    ],
    [
      "*anda-",
      "Reconstruction:Proto-Germanic/anda-"
    ],
    [
      "*andi-",
      "Reconstruction:Proto-Germanic/andi-"
    ],
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      "*h₂énti",
      "Reconstruction:Proto-Indo-European/h₂énti"
    ],
    [
      "*h₂énts",
      "Reconstruction:Proto-Indo-European/h₂énts"
    ],
    [
      "un-",
      "un-#English:_negative"
    ]
  ],
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        "the inverse of a specified action",
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      ],
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Source etymology 3

Original entry ↗
prefix

Used for the digit one to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name. · Used to form large numbers as the first in the sequence.

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

Etymology tree Proto-Indo-European *ís? Proto-Indo-European *h₁óynos Proto-Italic *oinos Old Latin oinos Latin ūnusbor. English un- Borrowed from Latin ūnus.

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": ":bor",
        "3": "la:ūnus",
        "id": "one",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *ís?\nProto-Indo-European *h₁óynos\nProto-Italic *oinos\nOld Latin oinos\nLatin ūnusbor.\nEnglish un-\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"id\" : \"one\", \"children\" : [ { \"terms\" : [ { \"id\" : \"one\", \"children\" : [ { \"terms\" : [ { \"id\" : \"one\", \"children\" : [ { \"terms\" : [ { \"is_uncertain\" : true, \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*ís\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*h₁óynos\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Italic\", \"term\" : \"*oinos\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Old Latin\", \"term\" : \"oinos\", \"lang\" : \"itc-ola\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang_name\" : \"Latin\", \"term\" : \"ūnus\", \"status\" : \"ok\", \"lang\" : \"la\" } ], \"keyword\" : \"bor\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"un-\", \"lang\" : \"en\" }\" data-id=\"one\" data-lang=\"en\" data-title=\"un-\" id=\"English:_one\">\nBorrowed from Latin ūnus."
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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 un- →

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-dW4t