*SET-U

English word origin

Etymology of thou

From Middle English thou, tho, thogh, thoue, thouȝ, thow, thowe, tou, towe, thu, thue, thugh, tu, you (Northern England), ðhu, þeou, þeu, þou (the latter three early Southwest England), from Old English þū, from Proto-We

5 source sectionsExtended source reportWiktionary original ↗
In this entry · 5 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 ↗
pron

Nominative singular of ye (“you”).

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

From Middle English thou, tho, thogh, thoue, thouȝ, thow, thowe, tou, towe, thu, thue, thugh, tu, you (Northern England), ðhu, þeou, þeu, þou (the latter three early Southwest England), from Old English þū, from Proto-West Germanic *þū, from Proto-Germanic *þū (“you (singular), thou”), from Proto-Indo-European *túh₂ (“you, thou”). cognates and usage evolution The English word is cognate with Saterland Frisian du (“thou”), West Frisian do (“thou”), dialectal Dutch du, dou, douw (“thou”), Limburgish doe (“thou”), Low German du (“thou”), dialectal German dau (“thou”), German du (“thou”), Danish du (“thou”), Swedish du (“thou”), Norwegian Nynorsk du (“thou”), Faroese tú (“thou”), Icelandic þú (“thou”), Gothic 𐌸𐌿 (þu, “thou”), Latin tu, Ancient Greek σύ (sú) (Doric Ancient Greek τύ (tú), Greek εσύ (esý)), Irish tú, Lithuanian tu, Old Church Slavonic тꙑ (ty), Welsh ti, Armenian դու (du), Albanian ti, Persian تو (to), Gujarati તું (tũ), Hindi तू (tū). The informality of thou and its replacement by ye in formal situations date only to the 14th century and come from French influence, since French (as many European languages, but not Old English) uses the second-person plural (vous) instead of the second-person singular (tu) as a mark of politeness or respect.

Relationships mentioned by the source

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

  • Inherited-form mentionthouenm
  • Inherited-form mentionþūang
  • Inherited-form mention*þūgmw-pro
  • Inherited-form mention*þūgem-pro · you (singular), thou
  • Derivation mention*túh₂ine-pro · you, thou
  • Cognate mentiondustq · thou
  • Cognate mentiondofy · thou
  • Cognate mentiondunl
  • Cognate mentiondoeli · thou
  • Cognate mentiondunds · thou
  • Cognate mentiondaude · thou
  • Cognate mentiondude · thou
  • Cognate mentionduda · thou
  • Cognate mentiondusv · thou
  • Cognate mentiondunn · thou
  • Cognate mentiontúfo · thou
  • Cognate mentionþúis · thou
  • Cognate mention𐌸𐌿got · thou
  • Cognate mentiontula
  • Cognate mentionσύgrc
  • Cognate mentionτύgrc
  • Cognate mentionεσύel
  • Cognate mentiontúga
  • Cognate mentiontult
  • Cognate mentionтꙑcu
  • Cognate mentionticy
  • Cognate mentionդուhy
  • Cognate mentiontisq
  • Cognate mentionتوfa
  • Cognate mentionતુંgu
  • Cognate mentionतूhi
Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "thou"
      },
      "expansion": "Middle English thou"
    },
    {
      "name": "qualifier",
      "args": {
        "1": "Northern England"
      },
      "expansion": "(Northern England)"
    },
    {
      "name": "qualifier",
      "args": {
        "1": "the latter three early Southwest England"
      },
      "expansion": "(the latter three early Southwest England)"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ang",
        "3": "þū"
      },
      "expansion": "Old English þū"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gmw-pro",
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    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gem-pro",
        "3": "*þū",
        "t": "you (singular), thou"
      },
      "expansion": "Proto-Germanic *þū (“you (singular), thou”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*túh₂",
        "t": "you, thou"
      },
      "expansion": "Proto-Indo-European *túh₂ (“you, thou”)"
    },
    {
      "name": "col-top",
      "args": {
        "1": "2",
        "2": "cognates and usage evolution"
      },
      "expansion": "cognates and usage evolution"
    },
    {
      "name": "cog",
      "args": {
        "1": "stq",
        "2": "du",
        "t": "thou"
      },
      "expansion": "Saterland Frisian du (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fy",
        "2": "do",
        "t": "thou"
      },
      "expansion": "West Frisian do (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nl",
        "2": "du"
      },
      "expansion": "Dutch du"
    },
    {
      "name": "cog",
      "args": {
        "1": "li",
        "2": "doe",
        "t": "thou"
      },
      "expansion": "Limburgish doe (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nds",
        "2": "du",
        "t": "thou"
      },
      "expansion": "Low German du (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "dau",
        "t": "thou"
      },
      "expansion": "German dau (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "du",
        "t": "thou"
      },
      "expansion": "German du (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "da",
        "2": "du",
        "t": "thou"
      },
      "expansion": "Danish du (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "sv",
        "2": "du",
        "t": "thou"
      },
      "expansion": "Swedish du (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nn",
        "2": "du",
        "t": "thou"
      },
      "expansion": "Norwegian Nynorsk du (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fo",
        "2": "tú",
        "t": "thou"
      },
      "expansion": "Faroese tú (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "is",
        "2": "þú",
        "t": "thou"
      },
      "expansion": "Icelandic þú (“thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "got",
        "2": "𐌸𐌿",
        "t": "thou"
      },
      "expansion": "Gothic 𐌸𐌿 (þu, “thou”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "la",
        "2": "tu"
      },
      "expansion": "Latin tu"
    },
    {
      "name": "cog",
      "args": {
        "1": "grc",
        "2": "σύ"
      },
      "expansion": "Ancient Greek σύ (sú)"
    },
    {
      "name": "cog",
      "args": {
        "1": "grc",
        "2": "τύ"
      },
      "expansion": "Ancient Greek τύ (tú)"
    },
    {
      "name": "cog",
      "args": {
        "1": "el",
        "2": "εσύ"
      },
      "expansion": "Greek εσύ (esý)"
    },
    {
      "name": "cog",
      "args": {
        "1": "ga",
        "2": "tú"
      },
      "expansion": "Irish tú"
    },
    {
      "name": "cog",
      "args": {
        "1": "lt",
        "2": "tu"
      },
      "expansion": "Lithuanian tu"
    },
    {
      "name": "cog",
      "args": {
        "1": "cu",
        "2": "тꙑ"
      },
      "expansion": "Old Church Slavonic тꙑ (ty)"
    },
    {
      "name": "cog",
      "args": {
        "1": "cy",
        "2": "ti"
      },
      "expansion": "Welsh ti"
    },
    {
      "name": "cog",
      "args": {
        "1": "hy",
        "2": "դու"
      },
      "expansion": "Armenian դու (du)"
    },
    {
      "name": "cog",
      "args": {
        "1": "sq",
        "2": "ti"
      },
      "expansion": "Albanian ti"
    },
    {
      "name": "cog",
      "args": {
        "1": "fa",
        "2": "تو",
        "tr": "to"
      },
      "expansion": "Persian تو (to)"
    },
    {
      "name": "cog",
      "args": {
        "1": "gu",
        "2": "તું"
      },
      "expansion": "Gujarati તું (tũ)"
    },
    {
      "name": "cog",
      "args": {
        "1": "hi",
        "2": "तू"
      },
      "expansion": "Hindi तू (tū)"
    },
    {
      "name": "sup",
      "args": {
        "1": "1"
      },
      "expansion": "¹"
    },
    {
      "name": "sup",
      "args": {
        "1": "1"
      },
      "expansion": "¹"
    }
  ],
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      "thou",
      "thou#Middle_English"
    ],
    [
      "tho",
      "tho#Middle_English"
    ],
    [
      "thogh",
      "thogh#Middle_English"
    ],
    [
      "thoue",
      "thoue#Middle_English"
    ],
    [
      "thouȝ",
      "thouȝ#Middle_English"
    ],
    [
      "thow",
      "thow#Middle_English"
    ],
    [
      "thowe",
      "thowe#Middle_English"
    ],
    [
      "tou",
      "tou#Middle_English"
    ],
    [
      "towe",
      "towe#Middle_English"
    ],
    [
      "thu",
      "thu#Middle_English"
    ],
    [
      "thue",
      "thue#Middle_English"
    ],
    [
      "thugh",
      "thugh#Middle_English"
    ],
    [
      "tu",
      "tu#Middle_English"
    ],
    [
      "you",
      "you#Middle_English"
    ],
    [
      "ðhu",
      "ðhu#Middle_English"
    ],
    [
      "þeou",
      "þeou#Middle_English"
    ],
    [
      "þeu",
      "þeu#Middle_English"
    ],
    [
      "þou",
      "þou#Middle_English"
    ],
    [
      "þū",
      "þu#Old_English"
    ],
    [
      "*þū",
      "Reconstruction:Proto-West Germanic/þū"
    ],
    [
      "*þū",
      "Reconstruction:Proto-Germanic/þū"
    ],
    [
      "*túh₂",
      "Reconstruction:Proto-Indo-European/túh₂"
    ],
    [
      "du",
      "du#Saterland_Frisian"
    ],
    [
      "do",
      "do#West_Frisian"
    ],
    [
      "du",
      "du#Dutch"
    ],
    [
      "dou",
      "dou#Dutch"
    ],
    [
      "douw",
      "douw#Dutch"
    ],
    [
      "doe",
      "doe#Limburgish"
    ],
    [
      "du",
      "du#Low_German"
    ],
    [
      "dau",
      "dau#German"
    ],
    [
      "du",
      "du#German"
    ],
    [
      "du",
      "du#Danish"
    ],
    [
      "du",
      "du#Swedish"
    ],
    [
      "du",
      "du#Norwegian_Nynorsk"
    ],
    [
      "tú",
      "tú#Faroese"
    ],
    [
      "þú",
      "þú#Icelandic"
    ],
    [
      "𐌸𐌿",
      "𐌸𐌿#Gothic"
    ],
    [
      "tu",
      "tu#Latin"
    ],
    [
      "σύ",
      "σύ#Ancient_Greek"
    ],
    [
      "τύ",
      "τύ#Ancient_Greek"
    ],
    [
      "εσύ",
      "εσύ#Greek"
    ],
    [
      "tú",
      "tú#Irish"
    ],
    [
      "tu",
      "tu#Lithuanian"
    ],
    [
      "тꙑ",
      "тꙑ#Old_Church_Slavonic"
    ],
    [
      "ti",
      "ti#Welsh"
    ],
    [
      "դու",
      "դու#Armenian"
    ],
    [
      "ti",
      "ti#Albanian"
    ],
    [
      "تو",
      "تو#Persian"
    ],
    [
      "તું",
      "તું#Gujarati"
    ],
    [
      "तू",
      "तू#Hindi"
    ],
    [
      "vous",
      "vous#French"
    ],
    [
      "tu",
      "tu#French"
    ]
  ],
  "references": [],
  "descendants": [],
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    {
      "pos": "pron",
      "glosses": [
        "Nominative singular of ye (“you”)."
      ],
      "tags": [
        "archaic",
        "dialectal",
        "form-of",
        "literary",
        "nominative",
        "singular"
      ],
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}

Source etymology 2

Original entry ↗
verb

To address (a person) using the pronoun thou, especially as an expression of contempt or familiarity. · To use the word thou.

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

From Late Middle English thouen, theu, thew, thou, thowe, thowen, thui, thuy (“to address (a person) with thou, particularly in a contemptuous or polite manner”), from the pronoun thou: see etymology 1 above.

Relationships mentioned by the source

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

  • Inherited-form mentionthouenenm
Inspect preserved source fields

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

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    {
      "name": "inh",
      "args": {
        "1": "en",
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        "3": "thouen"
      },
      "expansion": "Middle English thouen"
    },
    {
      "name": "glossary",
      "args": {
        "1": "pronoun"
      },
      "expansion": "pronoun"
    }
  ],
  "links": [
    [
      "thouen",
      "thouen#Middle_English"
    ],
    [
      "theu",
      "theu#Middle_English"
    ],
    [
      "thew",
      "thew#Middle_English"
    ],
    [
      "thou",
      "thou#Middle_English"
    ],
    [
      "thowe",
      "thowe#Middle_English"
    ],
    [
      "thowen",
      "thowen#Middle_English"
    ],
    [
      "thui",
      "thui#Middle_English"
    ],
    [
      "thuy",
      "thuy#Middle_English"
    ],
    [
      "thou",
      "thou#Middle_English"
    ],
    [
      "etymology 1",
      "#Etymology 1"
    ]
  ],
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        "To use the word thou."
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}

Source etymology 3

Original entry ↗
noun

A unit of length equal to one thousandth of an inch (25.4 µm).

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

Clipping of thou(sandth).

Inspect preserved source fields

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

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        "1": "en",
        "2": "thousandth",
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      "expansion": "Clipping of thou(sandth)"
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        "1": "2"
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      "expansion": "²"
    },
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      "expansion": "²"
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Source etymology 4

Original entry ↗
noun

A thousand, especially a thousand of some currency (dollars, pounds sterling, etc.).

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

Clipping of thou(sand).

Inspect preserved source fields

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

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Source etymology 5

Original entry ↗
adv

Misspelling of though.

conj

Misspelling of though.

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

See though.

Inspect preserved source fields

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

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    {
      "pos": "adv",
      "glosses": [
        "Misspelling of though."
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        "Misspelling of though."
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        "alt-of",
        "misspelling"
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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.

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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-dGhvdQ