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English word origin

Etymology of ISO

Officially from Greek ίσος (ísos, “equal”). However, a participant in the initial meetings disputes this etymology, claiming that the link to ίσος was decided on after the name ISO was set. (file format): From the file e

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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.

Source etymology 1

Original entry ↗
name

The International Organization for Standardization.

noun

A disk image of an ISO 9660 file system (such as a CD or DVD). · A measure of film sensitivity or brightness, derived from the ISO standard.

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

Officially from Greek ίσος (ísos, “equal”). However, a participant in the initial meetings disputes this etymology, claiming that the link to ίσος was decided on after the name ISO was set. (file format): From the file extension, in reference to the ISO 9660 specification.

Relationships mentioned by the source

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

Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "el",
        "3": "ίσος",
        "4": "",
        "5": "equal"
      },
      "expansion": "Greek ίσος (ísos, “equal”)"
    },
    {
      "name": "sense",
      "args": {
        "1": "file format"
      },
      "expansion": "(file format):"
    }
  ],
  "links": [
    [
      "ίσος",
      "ίσος#Greek"
    ],
    [
      "file extension",
      "file extension"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "name",
      "glosses": [
        "The International Organization for Standardization."
      ],
      "tags": [],
      "recordId": "46f6af162fd9b478c00f7de62f45b71cd86b585d23085113b760068d9fdfaca8",
      "rawRecordSha256": "3298f931fd38ad8416d17643ade779aea356a4f27592d36bf25f372da011f83c",
      "sourceRecordOrdinal": 327341
    },
    {
      "pos": "noun",
      "glosses": [
        "A disk image of an ISO 9660 file system (such as a CD or DVD).",
        "A measure of film sensitivity or brightness, derived from the ISO standard."
      ],
      "tags": [],
      "recordId": "49ff6004874cf92396fc9dba7b1c80baaccbeba3f8a6cea27b260b63a2e548a3",
      "rawRecordSha256": "bb6dbb11921c3a5d02baa2a6d00f210be1824735f398e3f3a7378fb2059596ae",
      "sourceRecordOrdinal": 327342
    }
  ],
  "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 ISO →

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-SVNP