*SET-U

English word origin

Etymology of infix

Back-formation from Middle English infixed (“stuck in”), from Latin infixus, past participle of infigō (“to fasten in”).

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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 ↗
verb

To set; to fasten or fix by piercing or thrusting in. · To instill. · To insert a morpheme inside an existing word.

noun

An affix inserted inside a root, such as -ma- in English edumacation. · A prefix that is not at the beginning of a word, such as the con- of reconcile, or a suffix that is not at the end of a word, such as the -al of nationality. · A prefix that always occurs in the position immediately before the verb root, and which may in turn be preceded by other prefixes. · Synonym of interfix.

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

Back-formation from Middle English infixed (“stuck in”), from Latin infixus, past participle of infigō (“to fasten in”).

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": "back-form",
      "args": {
        "1": "en"
      },
      "expansion": "Back-formation"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "infixed",
        "t": "stuck in"
      },
      "expansion": "Middle English infixed (“stuck in”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "la",
        "3": "infixus"
      },
      "expansion": "Latin infixus"
    }
  ],
  "links": [
    [
      "infixed",
      "infixed#Middle_English"
    ],
    [
      "infixus",
      "infixus#Latin"
    ],
    [
      "infigō",
      "infigo#Latin"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "verb",
      "glosses": [
        "To set; to fasten or fix by piercing or thrusting in.",
        "To instill.",
        "To insert a morpheme inside an existing word."
      ],
      "tags": [
        "archaic",
        "transitive"
      ],
      "recordId": "71819f5762225715a93ae578937d8640c717d23cce5971bafa907b0dd379f72e",
      "rawRecordSha256": "5ac68e6576d9c2f6566d86910e73fd3cdc74c04069d739aa9963cf7b247b14a9",
      "sourceRecordOrdinal": 222169
    },
    {
      "pos": "noun",
      "glosses": [
        "An affix inserted inside a root, such as -ma- in English edumacation.",
        "A prefix that is not at the beginning of a word, such as the con- of reconcile, or a suffix that is not at the end of a word, such as the -al of nationality.",
        "A prefix that always occurs in the position immediately before the verb root, and which may in turn be preceded by other prefixes.",
        "Synonym of interfix."
      ],
      "tags": [
        "dated",
        "proscribed"
      ],
      "recordId": "e449baf481dadaabc7b7077064664b10d124a092689ac09117b934acc77bf1f1",
      "rawRecordSha256": "956e8a30970c871edb766f4cc794324f3c6e133594d2b0ab53e4bb2b79f1016e",
      "sourceRecordOrdinal": 222170
    }
  ],
  "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 infix →

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-aW5maXg