*SET-U

English word origin

Etymology of ulcer

From Old French ulcere, from Latin ulcus. Doublet of ulcus.

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

An open sore of the skin, eyes or mucous membrane, often caused by an initial abrasion and generally maintained by an inflammation and/or an infection. · Peptic ulcer. · Anything that festers and corrupts like an open sore; a vice in character.

verb

To ulcerate.

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

From Old French ulcere, from Latin ulcus. Doublet of ulcus.

Relationships mentioned by the source

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

  • Unspecified derivation mentionulcerefro
  • Unspecified derivation mentionulcusla
  • Doublet mentionulcusen
Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "uder",
      "args": {
        "1": "en",
        "2": "fro",
        "3": "ulcere"
      },
      "expansion": "Old French ulcere"
    },
    {
      "name": "uder",
      "args": {
        "1": "en",
        "2": "la",
        "3": "ulcus"
      },
      "expansion": "Latin ulcus"
    },
    {
      "name": "doublet",
      "args": {
        "1": "en",
        "2": "ulcus"
      },
      "expansion": "Doublet of ulcus"
    }
  ],
  "links": [
    [
      "ulcere",
      "ulcere#Old_French"
    ],
    [
      "ulcus",
      "ulcus#Latin"
    ],
    [
      "ulcus",
      "ulcus#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "An open sore of the skin, eyes or mucous membrane, often caused by an initial abrasion and generally maintained by an inflammation and/or an infection.",
        "Peptic ulcer.",
        "Anything that festers and corrupts like an open sore; a vice in character."
      ],
      "tags": [
        "figuratively"
      ],
      "recordId": "7757a1fba8cabbe657378642ad6d06f549c83e96ff38ba3b384fa31de7da935b",
      "rawRecordSha256": "751dba1532cb1e452a1018174c66460d44c9321030070dda505a0c990313b561",
      "sourceRecordOrdinal": 294682
    },
    {
      "pos": "verb",
      "glosses": [
        "To ulcerate."
      ],
      "tags": [],
      "recordId": "7f1db73da2a842f72f702bb31eeebb6b12e8e2e7759c450f15dcc488e9809b62",
      "rawRecordSha256": "cd816fb29f2761be17d8f2273b33ed6d613a79939460ea96e3f8e95828574782",
      "sourceRecordOrdinal": 294683
    }
  ],
  "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 ulcer →

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-dWxjZXI