*SET-U

English word origin

Etymology of oust

From Anglo-Norman ouster, oustier, from Old French oster (modern French ôter), from post-classical Latin obstare (“to remove”), classical obstāre (“to obstruct, stand in the way of”). Not related to out.

1 source sectionExtended source reportWiktionary original ↗

INDEPENDENT SOURCE LIBRARY

Compare another source on this spelling

These are spelling matches, not a claim of identical senses or agreement. Historical accounts retain their own editions and limits; none is automatically promoted into reviewed ancestry.

Browse the independently attributed sources →
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 expel; to remove.

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

From Anglo-Norman ouster, oustier, from Old French oster (modern French ôter), from post-classical Latin obstare (“to remove”), classical obstāre (“to obstruct, stand in the way of”). Not related to out.

Relationships mentioned by the source

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

  • Unspecified derivation mentionosterfro
  • Unspecified derivation mentionobstarela
Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "uder",
      "args": {
        "1": "en",
        "2": "xno",
        "3": "ouster"
      },
      "expansion": "Anglo-Norman ouster"
    },
    {
      "name": "uder",
      "args": {
        "1": "en",
        "2": "fro",
        "3": "oster"
      },
      "expansion": "Old French oster"
    },
    {
      "name": "uder",
      "args": {
        "1": "en",
        "2": "la",
        "3": "obstare",
        "4": "",
        "5": "to remove"
      },
      "expansion": "Latin obstare (“to remove”)"
    }
  ],
  "links": [
    [
      "ouster",
      "ouster#Old_French"
    ],
    [
      "oustier",
      "oustier#Old_French"
    ],
    [
      "oster",
      "oster#Old_French"
    ],
    [
      "ôter",
      "ôter#French"
    ],
    [
      "obstare",
      "obstare#Latin"
    ],
    [
      "obstāre",
      "obstare#Latin"
    ],
    [
      "out",
      "out#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "verb",
      "glosses": [
        "To expel; to remove."
      ],
      "tags": [
        "transitive"
      ],
      "recordId": "a42800de1f12e0ba9b27c66d253e9f751860c5ed29cba9866c17d8c0c3bfa615",
      "rawRecordSha256": "56d67437e0626928f6aeac1c01316cb957d62095d425df623dae8241341d5ca2",
      "sourceRecordOrdinal": 232124
    }
  ],
  "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 oust →

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-b3VzdA