*SET-U

English word origin

Etymology of Ogham

Borrowed from Irish ogham, from Middle Irish ogam, from Proto-Celtic *ogmos (“furrow, path”), from Proto-Indo-European *h₂óǵmos. The Irish word is frequently folk-etymologized as og-úaim, referring to ogham being suppose

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 ↗
noun

A single character in this alphabet.

name

The Ogham alphabet, a writing system used to write Irish first attested inscribed on the edge of standing stones from the 4th century AD, with continuous use thereafter.

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

Borrowed from Irish ogham, from Middle Irish ogam, from Proto-Celtic *ogmos (“furrow, path”), from Proto-Indo-European *h₂óǵmos. The Irish word is frequently folk-etymologized as og-úaim, referring to ogham being supposedly made by the point of a sharp weapon, but this approach faces serious phonological and morphological problems in that: * The name of ogham and the supposed second element (úaimm (“seam”)?) inflected very differently in Early Irish, "ogham" being an o-stem and the second element being a neuter n-stem. * Middle Irish ogmóir (“skilled in ogham”) should have a vowel in between the g and m because vowels lengthened by compensatory lengthening after consonant loss are usually not syncopated in Early Irish.

Relationships mentioned by the source

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

  • Borrowed-form mentionoghamga
  • Derivation mentionogammga
  • Derivation mention*ogmoscel-pro · furrow, path
  • Derivation mention*h₂óǵmosine-pro
Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "bor",
      "args": {
        "1": "en",
        "2": "ga",
        "3": "ogham"
      },
      "expansion": "Irish ogham"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "mga",
        "3": "ogam"
      },
      "expansion": "Middle Irish ogam"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "cel-pro",
        "3": "*ogmos",
        "t": "furrow, path"
      },
      "expansion": "Proto-Celtic *ogmos (“furrow, path”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*h₂óǵmos"
      },
      "expansion": "Proto-Indo-European *h₂óǵmos"
    },
    {
      "name": "m+",
      "args": {
        "1": "mga",
        "2": "ogmóir",
        "t": "skilled in ogham"
      },
      "expansion": "Middle Irish ogmóir (“skilled in ogham”)"
    }
  ],
  "links": [
    [
      "ogham",
      "ogham#Irish"
    ],
    [
      "ogam",
      "ogam#Middle_Irish"
    ],
    [
      "*ogmos",
      "Reconstruction:Proto-Celtic/ogmos"
    ],
    [
      "*h₂óǵmos",
      "Reconstruction:Proto-Indo-European/h₂óǵmos"
    ],
    [
      "og",
      "og#Irish"
    ],
    [
      "úaimm",
      "úaimm#Middle_Irish"
    ],
    [
      "ogmóir",
      "ogmóir#Middle_Irish"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A single character in this alphabet."
      ],
      "tags": [],
      "recordId": "db96c723d2e2b0dad2b9836575d7106f51eb8ce551801b98b6ec04c2d62680c7",
      "rawRecordSha256": "2a6fa79eac1f00436ae8b3295823be364c828d7d758b605b2a225ce091310bdf",
      "sourceRecordOrdinal": 222858
    },
    {
      "pos": "name",
      "glosses": [
        "The Ogham alphabet, a writing system used to write Irish first attested inscribed on the edge of standing stones from the 4th century AD, with continuous use thereafter."
      ],
      "tags": [],
      "recordId": "f1052ed1bb316ece0e1b555bc78c99741bb4919f357b520b2a9e78a73393189f",
      "rawRecordSha256": "e601da6eb5a6bbe3f8a8be6884182e7e0c282f777d96c20af177bfbc36507837",
      "sourceRecordOrdinal": 222857
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "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 Ogham →

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-T2doYW0