*SET-U

English word origin

Etymology of affirm

From Middle English affermen, from Old French afermer, affermer, from Latin affirmare, adfirmare (“to present as fixed, aver, affirm”), from ad (“to”) + firmare (“to make firm”), from firmus (“firm”). By surface analysis

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 ↗
verb

To agree, verify or concur; to answer positively. · To assert positively; to tell with confidence; to aver; to maintain as true. · To support or encourage. · To make firm; to confirm, or ratify; especially (law) to assert or confirm, as a judgment, decree, or order, brought before an appellate court for review.

intj

Yes; true; correct.

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

From Middle English affermen, from Old French afermer, affermer, from Latin affirmare, adfirmare (“to present as fixed, aver, affirm”), from ad (“to”) + firmare (“to make firm”), from firmus (“firm”). By surface analysis, af- + firm.

Relationships mentioned by the source

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

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": "root",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*dʰer-"
      },
      "expansion": ""
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "affermen"
      },
      "expansion": "Middle English affermen"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "fro",
        "3": "afermer"
      },
      "expansion": "Old French afermer"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "la",
        "3": "affirmare"
      },
      "expansion": "Latin affirmare"
    },
    {
      "name": "surf",
      "args": {
        "1": "en",
        "2": "af-",
        "3": "firm"
      },
      "expansion": "By surface analysis, af- + firm"
    }
  ],
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    ],
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    ],
    [
      "affermer",
      "affermer#Old_French"
    ],
    [
      "affirmare",
      "affirmare#Latin"
    ],
    [
      "adfirmare",
      "adfirmare#Latin"
    ],
    [
      "ad",
      "ad#Latin"
    ],
    [
      "firmare",
      "firmare#Latin"
    ],
    [
      "firmus",
      "firmus#Latin"
    ],
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      "af-",
      "af-#English"
    ],
    [
      "firm",
      "firm#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "verb",
      "glosses": [
        "To agree, verify or concur; to answer positively.",
        "To assert positively; to tell with confidence; to aver; to maintain as true.",
        "To support or encourage.",
        "To make firm; to confirm, or ratify; especially (law) to assert or confirm, as a judgment, decree, or order, brought before an appellate court for review."
      ],
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      "sourceRecordOrdinal": 339812
    },
    {
      "pos": "intj",
      "glosses": [
        "Yes; true; correct."
      ],
      "tags": [],
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  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
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    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 1,
    "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 affirm →

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
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Import run
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID
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