*SET-U

English word origin

Etymology of sour

Etymology tree Proto-Indo-European *súHros Proto-Germanic *sūraz Proto-West Germanic *sūr Old English sūr Middle English sour English sour From Middle English sour, from Old English sūr (“sour”), from Proto-West Germanic

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 ↗
verb

To make sour. · To become sour. · To spoil or mar; to make disenchanted. · To become disenchanted.

adj

Tasting of acidity. · Made rancid by fermentation, etc. · Tasting or smelling rancid. · Hostile or unfriendly.

noun

The sensation of a sour taste. · A drink made with whiskey, lemon or lime juice and sugar. · Any cocktail containing lemon or lime juice. · A sweet/candy having a sharply sour taste.

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

Etymology tree Proto-Indo-European *súHros Proto-Germanic *sūraz Proto-West Germanic *sūr Old English sūr Middle English sour English sour From Middle English sour, from Old English sūr (“sour”), from Proto-West Germanic *sūr, from Proto-Germanic *sūraz (“sour”), from Proto-Indo-European *súHros (“sour”). Cognate with West Frisian soer, Dutch zuur (“sour”), Low German suur, German sauer (“sour”), Danish, Norwegian Bokmål, Norwegian Nynorsk, and Swedish sur (“sour”), French sur (“sour”), Faroese súrur (“sour”), Icelandic súr (“sour, bitter”), Polish ser (“cheese”), Czech sýr (“cheese”), Slovak syr (“cheese”), Russian сырой (syroj, “raw”), Ukrainian сири́й (syrýj, “raw”), Old Church Slavonic сꙑръ (syrŭ, “moist, cheese”).

Relationships mentioned by the source

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

  • Inherited-form mentionsourenm
  • Inherited-form mentionsūrang · sour
  • Inherited-form mention*sūrgmw-pro
  • Inherited-form mention*sūrazgem-pro
  • Derivation mention*súHrosine-pro · sour
  • Cognate mentionsoerfy
  • Cognate mentionzuurnl · sour
  • Cognate mentionsuurnds
  • Cognate mentionsauerde · sour
  • Cognate mentionsurfr · sour
  • Cognate mentionsúrurfo · sour
  • Cognate mentionsúris · sour, bitter
  • Cognate mentionserpl · cheese
  • Cognate mentionsýrcs · cheese
  • Cognate mentionsyrsk · cheese
  • Cognate mentionсыройru · raw
  • Cognate mentionсири́йuk · raw
  • Cognate mentionсꙑръcu · moist, cheese

This page abbreviates 9 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": "ety",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:sour",
        "tree": "+"
      },
      "expansion": "Etymology tree\nProto-Indo-European *súHros\nProto-Germanic *sūraz\nProto-West Germanic *sūr\nOld English sūr\nMiddle English sour\nEnglish sour\n[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Germanic\", \"term\" : \"*sūraz\", \"status\" : \"ok\", \"lang\" : \"gem-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-West Germanic\", \"term\" : \"*sūr\", \"status\" : \"ok\", \"lang\" : \"gmw-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Old English\", \"term\" : \"sūr\", \"status\" : \"ok\", \"lang\" : \"ang\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"sour\", \"status\" : \"ok\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"English\", \"term\" : \"sour\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"sour\">"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "sour"
      },
      "expansion": "Middle English sour"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ang",
        "3": "sūr",
        "t": "sour"
      },
      "expansion": "Old English sūr (“sour”)"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gmw-pro",
        "3": "*sūr"
      },
      "expansion": "Proto-West Germanic *sūr"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gem-pro",
        "3": "*sūraz",
        "4": "",
        "5": "sour"
      },
      "expansion": "Proto-Germanic *sūraz (“sour”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*súHros",
        "t": "sour"
      },
      "expansion": "Proto-Indo-European *súHros (“sour”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fy",
        "2": "soer"
      },
      "expansion": "West Frisian soer"
    },
    {
      "name": "cog",
      "args": {
        "1": "nl",
        "2": "zuur",
        "t": "sour"
      },
      "expansion": "Dutch zuur (“sour”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nds",
        "2": "suur"
      },
      "expansion": "Low German suur"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "sauer",
        "t": "sour"
      },
      "expansion": "German sauer (“sour”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "da,nb,nn,sv",
        "2": "sur",
        "t": "sour"
      },
      "expansion": "Danish, Norwegian Bokmål, Norwegian Nynorsk, and Swedish sur (“sour”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fr",
        "2": "sur",
        "t": "sour"
      },
      "expansion": "French sur (“sour”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fo",
        "2": "súrur",
        "t": "sour"
      },
      "expansion": "Faroese súrur (“sour”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "is",
        "2": "súr",
        "t": "sour, bitter"
      },
      "expansion": "Icelandic súr (“sour, bitter”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "pl",
        "2": "ser",
        "t": "cheese"
      },
      "expansion": "Polish ser (“cheese”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "cs",
        "2": "sýr",
        "t": "cheese"
      },
      "expansion": "Czech sýr (“cheese”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "sk",
        "2": "syr",
        "t": "cheese"
      },
      "expansion": "Slovak syr (“cheese”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "ru",
        "2": "сырой",
        "t": "raw"
      },
      "expansion": "Russian сырой (syroj, “raw”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "uk",
        "2": "сири́й",
        "t": "raw"
      },
      "expansion": "Ukrainian сири́й (syrýj, “raw”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "cu",
        "2": "сꙑръ",
        "t": "moist, cheese"
      },
      "expansion": "Old Church Slavonic сꙑръ (syrŭ, “moist, cheese”)"
    },
    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:sour",
        "tree": "+"
      },
      "expansion": "Etymology tree\nProto-Indo-European *súHros\nProto-Germanic *sūraz\nProto-West Germanic *sūr\nOld English sūr\nMiddle English sour\nEnglish sour"
    }
  ],
  "links": [
    [
      "*súHros",
      "Reconstruction:Proto-Indo-European/súHros"
    ],
    [
      "*sūraz",
      "Reconstruction:Proto-Germanic/sūraz"
    ],
    [
      "*sūr",
      "Reconstruction:Proto-West Germanic/sūr"
    ],
    [
      "sūr",
      "sur#Old_English"
    ],
    [
      "sour",
      "sour#Middle_English"
    ],
    [
      "sour",
      "sour#Middle_English"
    ],
    [
      "sūr",
      "sur#Old_English"
    ],
    [
      "*sūr",
      "Reconstruction:Proto-West Germanic/sūr"
    ],
    [
      "*sūraz",
      "Reconstruction:Proto-Germanic/sūraz"
    ],
    [
      "*súHros",
      "Reconstruction:Proto-Indo-European/súHros"
    ],
    [
      "soer",
      "soer#West_Frisian"
    ],
    [
      "zuur",
      "zuur#Dutch"
    ],
    [
      "suur",
      "suur#Low_German"
    ],
    [
      "sauer",
      "sauer#German"
    ],
    [
      "Danish",
      "sur#Danish"
    ],
    [
      "Norwegian Bokmål",
      "sur#Norwegian_Bokmål"
    ],
    [
      "Norwegian Nynorsk",
      "sur#Norwegian_Nynorsk"
    ],
    [
      "sur",
      "sur#Swedish"
    ],
    [
      "sur",
      "sur#French"
    ],
    [
      "súrur",
      "súrur#Faroese"
    ],
    [
      "súr",
      "súr#Icelandic"
    ],
    [
      "ser",
      "ser#Polish"
    ],
    [
      "sýr",
      "sýr#Czech"
    ],
    [
      "syr",
      "syr#Slovak"
    ],
    [
      "сырой",
      "сырой#Russian"
    ],
    [
      "сири́й",
      "сирий#Ukrainian"
    ],
    [
      "сꙑръ",
      "сꙑръ#Old_Church_Slavonic"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "verb",
      "glosses": [
        "To make sour.",
        "To become sour.",
        "To spoil or mar; to make disenchanted.",
        "To become disenchanted."
      ],
      "tags": [
        "transitive",
        "intransitive"
      ],
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    },
    {
      "pos": "adj",
      "glosses": [
        "Tasting of acidity.",
        "Made rancid by fermentation, etc.",
        "Tasting or smelling rancid.",
        "Hostile or unfriendly."
      ],
      "tags": [],
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    },
    {
      "pos": "noun",
      "glosses": [
        "The sensation of a sour taste.",
        "A drink made with whiskey, lemon or lime juice and sugar.",
        "Any cocktail containing lemon or lime juice.",
        "A sweet/candy having a sharply sour taste."
      ],
      "tags": [
        "countable",
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  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 9,
    "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 sour →

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-c291cg