*SET-U

English word origin

Etymology of oakum

From Late Middle English okom, okome (“oakum”) [and other forms], from Old English ācumba (“oakum”, literally “that which has been combed out, off-combings”) [and other forms], from ācemban (“to comb out”), from Proto-Ge

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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

Coarse fibres separated by hackling from flax or hemp when preparing the latter for spinning. · Fibres chiefly obtained by untwisting old rope, which are used to caulk or pack gaps between boards of wooden ships and joints in masonry and plumbing, and sometimes for dressing wounds.

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

From Late Middle English okom, okome (“oakum”) [and other forms], from Old English ācumba (“oakum”, literally “that which has been combed out, off-combings”) [and other forms], from ācemban (“to comb out”), from Proto-Germanic *uz- (from Proto-Indo-European *ud-s-, *ūd- (“out; up”), or *h₂ew- (“away from, off”)) + *kambijaną (“to comb”) (ultimately from *ǵómbʰos (“row of teeth; tooth; peg”), *ǵembʰ- (“nail; tooth; to gnaw through; to pierce”)). See also out and comb.

Relationships mentioned by the source

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

  • Root classification mention*h₂ew-ine-pro
  • Root classification mention*ǵembʰ-ine-pro
  • Inherited-form mentionokomenm
  • Inherited-form mentionācumbaang · oakum
  • Inherited-form mention*uz-gem-pro
  • Inherited-form mention*ud-s-ine-pro
Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "dercat",
      "args": {
        "1": "en",
        "2": "ine-pro"
      },
      "expansion": ""
    },
    {
      "name": "langname",
      "args": {
        "1": "ine-pro"
      },
      "expansion": "Proto-Indo-European"
    },
    {
      "name": "word",
      "args": {
        "1": "en",
        "2": "ine",
        "3": "úd",
        "id": ""
      },
      "expansion": ""
    },
    {
      "name": "PIE word",
      "args": {
        "1": "en",
        "2": "úd"
      },
      "expansion": "PIE word\n *úd"
    },
    {
      "name": "dercat",
      "args": {
        "1": "en",
        "2": "ine-pro"
      },
      "expansion": ""
    },
    {
      "name": "langname",
      "args": {
        "1": "ine-pro"
      },
      "expansion": "Proto-Indo-European"
    },
    {
      "name": "word",
      "args": {
        "1": "en",
        "2": "ine",
        "3": "ǵómbʰos",
        "id": ""
      },
      "expansion": ""
    },
    {
      "name": "PIE word",
      "args": {
        "1": "en",
        "2": "ǵómbʰos"
      },
      "expansion": "PIE word\n *ǵómbʰos"
    },
    {
      "name": "root",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*h₂ew-",
        "4": "*ǵembʰ-"
      },
      "expansion": ""
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "okom"
      },
      "expansion": "Middle English okom"
    },
    {
      "name": "nb...",
      "args": {
        "1": "(Late Middle English) occome, ockom, ockombe, ocomb, okam, okcom, okem, okum, (Early Middle English) acuma",
        "otherforms": "1"
      },
      "expansion": "[and other forms]"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ang",
        "3": "ācumba",
        "t": "oakum",
        "lit": "that which has been combed out, off-combings"
      },
      "expansion": "Old English ācumba (“oakum”, literally “that which has been combed out, off-combings”)"
    },
    {
      "name": "nb...",
      "args": {
        "1": "acuma, acumb, acumbe, æcumba, æcumbe, (Early Old English) æcembe, ecambe (Mercia)",
        "otherforms": "1"
      },
      "expansion": "[and other forms]"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gem-pro",
        "3": "*uz-"
      },
      "expansion": "Proto-Germanic *uz-"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*ud-s-"
      },
      "expansion": "Proto-Indo-European *ud-s-"
    }
  ],
  "links": [
    [
      "tools",
      "tool#Noun"
    ],
    [
      "caulking",
      "caulking#Noun"
    ],
    [
      "okom",
      "okom#Middle_English"
    ],
    [
      "okome",
      "okome#Middle_English"
    ],
    [
      "ācumba",
      "acumba#Old_English"
    ],
    [
      "ācemban",
      "acemban#Old_English"
    ],
    [
      "*uz-",
      "Reconstruction:Proto-Germanic/uz-"
    ],
    [
      "*ud-s-",
      "Reconstruction:Proto-Indo-European/ud-s-"
    ],
    [
      "*ūd-",
      "Reconstruction:Proto-Indo-European/úd"
    ],
    [
      "*h₂ew-",
      "Reconstruction:Proto-Indo-European/h₂ew-"
    ],
    [
      "*kambijaną",
      "Reconstruction:Proto-Germanic/kambijaną"
    ],
    [
      "*ǵómbʰos",
      "Reconstruction:Proto-Indo-European/ǵómbʰos"
    ],
    [
      "*ǵembʰ-",
      "Reconstruction:Proto-Indo-European/ǵembʰ-"
    ],
    [
      "out",
      "out#English"
    ],
    [
      "comb",
      "comb#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "Coarse fibres separated by hackling from flax or hemp when preparing the latter for spinning.",
        "Fibres chiefly obtained by untwisting old rope, which are used to caulk or pack gaps between boards of wooden ships and joints in masonry and plumbing, and sometimes for dressing wounds."
      ],
      "tags": [
        "countable",
        "historical",
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      ],
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      "rawRecordSha256": "1e42ca2f4829bbc1d72063be073fe8b8fb773432eef3b7e307a56278491a3426",
      "sourceRecordOrdinal": 396722
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
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    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 0,
    "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 oakum →

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-b2FrdW0