*SET-U

English word origin

Etymology of luck

From Middle English luk, lukke, from Middle Dutch luc, geluc, gelucke (“good luck, fortune”) or Middle Low German lücke, gelücke (“lot, fortune, fate, luck”), of obscure origin; perhaps ultimately related to German Lücke

2 source sectionsExtended source reportWiktionary original ↗
In this entry · 2 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 · variant 1/2

Original entry ↗
noun

Something that happens to someone by chance, a chance occurrence. · A favourable chance occurrence. · A superstitious feeling that brings fortune or success. · Success.

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

From Middle English luk, lukke, from Middle Dutch luc, geluc, gelucke (“good luck, fortune”) or Middle Low German lücke, gelücke (“lot, fortune, fate, luck”), of obscure origin; perhaps ultimately related to German Lücke (“gap, opening”) in the sense of "space or opportunity", hence "chance". Cognate with West Frisian gelok (“luck”), Saterland Frisian Gluk (“luck”), Dutch luk, geluk (“luck, happiness”), Dutch Low Saxon luk (“luck”), German Low German and German Glück (“luck, good fortune, happiness”), Danish and Norwegian Bokmål lykke (“luck, happiness”), Norwegian Nynorsk lukke (“luck, happiness”), Swedish lycka (“luck, happiness”), Icelandic lukka (“happiness”). According to the OED, it may be related to lock. A loanword into English in the 15th century (probably as a gambling term), Middle Dutch luc, gelucke has parallels with Middle High German lücke, gelücke ("luck, skill, chance, profession, livelihood"; whence Modern German Glück). The word occurs only from the 12th century, apparently first in Rhine Frankish. Perhaps from a Frankish *galukki, derived from Proto-Germanic *lukjǭ (“opening”). The word enters standard Middle High German during the 13th century, and spreads to English and Scandinavian in the Late Middle Ages. Its origin seems to have been regional or dialectal, and there were competing German words such as gevelle or schick, or the Latinate fortūne from Latin fortūna. Its etymology is unknown, although there are numerous proposals as to its derivations from a number of roots. Use as a verb in American English is late (1940s), but there was a Middle English verb lukken (“to chance, to happen by good fortune”) in the 15th century.

Relationships mentioned by the source

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

  • Inherited-form mentionlukenm
  • Derivation mentionlucdum
  • Derivation mentionlückegml
  • Cognate mentionLückede · gap, opening
  • Cognate mentiongelokfy · luck
  • Cognate mentionGlukstq · luck
  • Cognate mentionluknl
  • Cognate mentionGlückde · luck, good fortune, happiness
  • Cognate mentionlukkenn
  • Cognate mentionlyckasv
  • Cognate mentionlukkais
  • Cognate mentionlucdum
  • Cognate mentionlückegmh
  • Cognate mentionGlückde
  • Derivation mention*lukjǭgem-pro · opening

This page abbreviates 1 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.

{
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      "name": "inh",
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        "1": "en",
        "2": "enm",
        "3": "luk"
      },
      "expansion": "Middle English luk"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "dum",
        "3": "luc"
      },
      "expansion": "Middle Dutch luc"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
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      "expansion": "Middle Low German lücke"
    },
    {
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      "name": "cog",
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        "1": "de",
        "2": "Lücke",
        "t": "gap, opening"
      },
      "expansion": "German Lücke (“gap, opening”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fy",
        "2": "gelok",
        "t": "luck"
      },
      "expansion": "West Frisian gelok (“luck”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "stq",
        "2": "Gluk",
        "t": "luck"
      },
      "expansion": "Saterland Frisian Gluk (“luck”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nl",
        "2": "luk"
      },
      "expansion": "Dutch luk"
    },
    {
      "name": "cog",
      "args": {
        "1": "nds-nl",
        "2": "luk",
        "t": "luck"
      },
      "expansion": "Dutch Low Saxon luk (“luck”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nds-de",
        "2": "-"
      },
      "expansion": "German Low German"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "Glück",
        "t": "luck, good fortune, happiness"
      },
      "expansion": "German Glück (“luck, good fortune, happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "da,nb",
        "2": "lykke",
        "3": "",
        "4": "luck, happiness"
      },
      "expansion": "Danish and Norwegian Bokmål lykke (“luck, happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nn",
        "2": "lukke",
        "3": "",
        "4": "luck, happiness"
      },
      "expansion": "Norwegian Nynorsk lukke (“luck, happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "sv",
        "2": "lycka",
        "3": "",
        "4": "luck, happiness"
      },
      "expansion": "Swedish lycka (“luck, happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "is",
        "2": "lukka",
        "3": "",
        "4": "happiness"
      },
      "expansion": "Icelandic lukka (“happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "dum",
        "2": "luc"
      },
      "expansion": "Middle Dutch luc"
    },
    {
      "name": "cog",
      "args": {
        "1": "gmh",
        "2": "lücke"
      },
      "expansion": "Middle High German lücke"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "Glück"
      },
      "expansion": "German Glück"
    },
    {
      "name": "gl",
      "args": {
        "1": "\"luck, skill, chance, profession, livelihood\"; whence Modern German <i class=\"Latn mention\" lang=\"de\">Glück</i>"
      },
      "expansion": "(\"luck, skill, chance, profession, livelihood\"; whence Modern German Glück)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "frk",
        "3": "*galukki"
      },
      "expansion": "Frankish *galukki"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "gem-pro",
        "3": "*lukjǭ",
        "t": "opening"
      },
      "expansion": "Proto-Germanic *lukjǭ (“opening”)"
    }
  ],
  "links": [
    [
      "luk",
      "luk#Middle_English"
    ],
    [
      "lukke",
      "lukke#Middle_English"
    ],
    [
      "luc",
      "luc#Middle_Dutch"
    ],
    [
      "geluc",
      "geluc#Middle_Dutch"
    ],
    [
      "gelucke",
      "gelucke#Middle_Dutch"
    ],
    [
      "lücke",
      "lucke#Middle_Low_German"
    ],
    [
      "gelücke",
      "gelucke#Middle_Low_German"
    ],
    [
      "Lücke",
      "Lücke#German"
    ],
    [
      "gelok",
      "gelok#West_Frisian"
    ],
    [
      "Gluk",
      "Gluk#Saterland_Frisian"
    ],
    [
      "luk",
      "luk#Dutch"
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      "geluk",
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      "luk",
      "luk#Low_German"
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      "Glück",
      "Glück#German"
    ],
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      "Danish",
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      "lykke",
      "lykke#Norwegian_Bokmål"
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      "lukke",
      "lukke#Norwegian_Nynorsk"
    ],
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      "lycka",
      "lycka#Swedish"
    ],
    [
      "lukka",
      "lukka#Icelandic"
    ],
    [
      "lock",
      "lock#English"
    ],
    [
      "luc",
      "luc#Middle_Dutch"
    ],
    [
      "gelucke",
      "geluc#Middle_Dutch"
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      "lücke",
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      "gelücke",
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    ],
    [
      "German",
      "w:German language"
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    [
      "Glück",
      "Glück#German"
    ],
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      "*galukki",
      "Reconstruction:Proto-West Germanic/galukki"
    ],
    [
      "*lukjǭ",
      "Reconstruction:Proto-Germanic/lukjǭ"
    ],
    [
      "gevelle",
      "gevelle#Middle_High_German"
    ],
    [
      "schick",
      "schick#Middle_High_German"
    ],
    [
      "fortūne",
      "fortune#Middle_High_German"
    ],
    [
      "fortūna",
      "fortuna#Latin"
    ],
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      "lukken",
      "lukken#Middle_English"
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      "word": "lwc",
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        "Something that happens to someone by chance, a chance occurrence.",
        "A favourable chance occurrence.",
        "A superstitious feeling that brings fortune or success.",
        "Success."
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Unnumbered source etymology · variant 2/2

Original entry ↗
verb

To find something through good fortune; used with into, on, onto or upon.

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

From Middle English luk, lukke, from Middle Dutch luc, geluc, gelucke (“good luck, fortune”) or Middle Low German lücke, gelücke (“lot, fortune, fate, luck”), of obscure origin; perhaps ultimately related to German Lücke (“gap, opening”) in the sense of "space or opportunity", hence "chance". Cognate with West Frisian gelok (“luck”), Saterland Frisian Gluk (“luck”), Dutch luk, geluk (“luck, happiness”), Dutch Low Saxon luk (“luck”), German Low German and German Glück (“luck, good fortune, happiness”), Danish and Norwegian Bokmål lykke (“luck, happiness”), Norwegian Nynorsk lukke (“luck, happiness”), Swedish lycka (“luck, happiness”), Icelandic lukka (“happiness”). According to the OED, it may be related to lock. A loanword into English in the 15th century (probably as a gambling term), Middle Dutch luc, gelucke has parallels with Middle High German lücke, gelücke ("luck, skill, chance, profession, livelihood"; whence Modern German Glück). The word occurs only from the 12th century, apparently first in Rhine Frankish. Perhaps from a Frankish *galukki, derived from Proto-Germanic *lukjǭ (“opening”). The word enters standard Middle High German during the 13th century, and spreads to English and Scandinavian in the Late Middle Ages. Its origin seems to have been regional or dialectal, and there were competing German words such as gevelle or schick, or the Latinate fortūne from Latin fortūna. Its etymology is unknown, although there are numerous proposals as to its derivations from a number of roots. Use as a verb in American English is late (1940s), but there was a Middle English verb lukken (“to chance, to happen by good fortune”) in the 15th century.

Relationships mentioned by the source

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

  • Inherited-form mentionlukenm
  • Derivation mentionlucdum
  • Derivation mentionlückegml
  • Cognate mentionLückede · gap, opening
  • Cognate mentiongelokfy · luck
  • Cognate mentionGlukstq · luck
  • Cognate mentionluknl
  • Cognate mentionGlückde · luck, good fortune, happiness
  • Cognate mentionlukkenn
  • Cognate mentionlyckasv
  • Cognate mentionlukkais
  • Cognate mentionlucdum
  • Cognate mentionlückegmh
  • Cognate mentionGlückde
  • Derivation mention*lukjǭgem-pro · opening
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": "luk"
      },
      "expansion": "Middle English luk"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "dum",
        "3": "luc"
      },
      "expansion": "Middle Dutch luc"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "gml",
        "3": "lücke"
      },
      "expansion": "Middle Low German lücke"
    },
    {
      "name": "unc",
      "args": {
        "1": "en",
        "title": "obscure"
      },
      "expansion": "obscure"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "Lücke",
        "t": "gap, opening"
      },
      "expansion": "German Lücke (“gap, opening”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fy",
        "2": "gelok",
        "t": "luck"
      },
      "expansion": "West Frisian gelok (“luck”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "stq",
        "2": "Gluk",
        "t": "luck"
      },
      "expansion": "Saterland Frisian Gluk (“luck”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nl",
        "2": "luk"
      },
      "expansion": "Dutch luk"
    },
    {
      "name": "cog",
      "args": {
        "1": "nds-nl",
        "2": "luk",
        "t": "luck"
      },
      "expansion": "Dutch Low Saxon luk (“luck”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nds-de",
        "2": "-"
      },
      "expansion": "German Low German"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "Glück",
        "t": "luck, good fortune, happiness"
      },
      "expansion": "German Glück (“luck, good fortune, happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "da,nb",
        "2": "lykke",
        "3": "",
        "4": "luck, happiness"
      },
      "expansion": "Danish and Norwegian Bokmål lykke (“luck, happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nn",
        "2": "lukke",
        "3": "",
        "4": "luck, happiness"
      },
      "expansion": "Norwegian Nynorsk lukke (“luck, happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "sv",
        "2": "lycka",
        "3": "",
        "4": "luck, happiness"
      },
      "expansion": "Swedish lycka (“luck, happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "is",
        "2": "lukka",
        "3": "",
        "4": "happiness"
      },
      "expansion": "Icelandic lukka (“happiness”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "dum",
        "2": "luc"
      },
      "expansion": "Middle Dutch luc"
    },
    {
      "name": "cog",
      "args": {
        "1": "gmh",
        "2": "lücke"
      },
      "expansion": "Middle High German lücke"
    },
    {
      "name": "cog",
      "args": {
        "1": "de",
        "2": "Glück"
      },
      "expansion": "German Glück"
    },
    {
      "name": "gl",
      "args": {
        "1": "\"luck, skill, chance, profession, livelihood\"; whence Modern German <i class=\"Latn mention\" lang=\"de\">Glück</i>"
      },
      "expansion": "(\"luck, skill, chance, profession, livelihood\"; whence Modern German Glück)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "frk",
        "3": "*galukki"
      },
      "expansion": "Frankish *galukki"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "gem-pro",
        "3": "*lukjǭ",
        "t": "opening"
      },
      "expansion": "Proto-Germanic *lukjǭ (“opening”)"
    }
  ],
  "links": [
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      "luk#Middle_English"
    ],
    [
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      "lukke#Middle_English"
    ],
    [
      "luc",
      "luc#Middle_Dutch"
    ],
    [
      "geluc",
      "geluc#Middle_Dutch"
    ],
    [
      "gelucke",
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    ],
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      "lücke",
      "lucke#Middle_Low_German"
    ],
    [
      "gelücke",
      "gelucke#Middle_Low_German"
    ],
    [
      "Lücke",
      "Lücke#German"
    ],
    [
      "gelok",
      "gelok#West_Frisian"
    ],
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      "Gluk",
      "Gluk#Saterland_Frisian"
    ],
    [
      "luk",
      "luk#Dutch"
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      "geluk",
      "geluk#Dutch"
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      "luk",
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      "Danish",
      "lykke#Danish"
    ],
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      "lykke",
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    ],
    [
      "lukke",
      "lukke#Norwegian_Nynorsk"
    ],
    [
      "lycka",
      "lycka#Swedish"
    ],
    [
      "lukka",
      "lukka#Icelandic"
    ],
    [
      "lock",
      "lock#English"
    ],
    [
      "luc",
      "luc#Middle_Dutch"
    ],
    [
      "gelucke",
      "geluc#Middle_Dutch"
    ],
    [
      "lücke",
      "lücke#Middle_High_German"
    ],
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      "gelücke",
      "gelücke#Middle_High_German"
    ],
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    [
      "Glück",
      "Glück#German"
    ],
    [
      "*galukki",
      "Reconstruction:Proto-West Germanic/galukki"
    ],
    [
      "*lukjǭ",
      "Reconstruction:Proto-Germanic/lukjǭ"
    ],
    [
      "gevelle",
      "gevelle#Middle_High_German"
    ],
    [
      "schick",
      "schick#Middle_High_German"
    ],
    [
      "fortūne",
      "fortune#Middle_High_German"
    ],
    [
      "fortūna",
      "fortuna#Latin"
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      "lukken",
      "lukken#Middle_English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "verb",
      "glosses": [
        "To find something through good fortune; used with into, on, onto or upon."
      ],
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        "informal",
        "intransitive"
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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 luck →

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-bHVjaw