*SET-U

English word origin

Etymology of Thun

From Medieval Latin Tuno, from Proto-Celtic *dūnom (“fortified town”), named before it fell to Rome.

1 source sectionBrief source recordWiktionary 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 ↗
name

A city and municipality of Bern canton, Switzerland. · An Alpine lake, which took its name from the city of Thun, on its northern shore: see Lake Thun.

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

From Medieval Latin Tuno, from Proto-Celtic *dūnom (“fortified town”), named before it fell to Rome.

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": "la-med",
        "3": "Tuno"
      },
      "expansion": "Medieval Latin Tuno"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "cel-pro",
        "3": "*dūnom",
        "4": "",
        "5": "fortified town"
      },
      "expansion": "Proto-Celtic *dūnom (“fortified town”)"
    }
  ],
  "links": [
    [
      "Tuno",
      "Tuno#Latin"
    ],
    [
      "*dūnom",
      "Reconstruction:Proto-Celtic/dūnom"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "name",
      "glosses": [
        "A city and municipality of Bern canton, Switzerland.",
        "An Alpine lake, which took its name from the city of Thun, on its northern shore: see Lake Thun."
      ],
      "tags": [],
      "recordId": "e829fcf228425be8d5aa079dfc2991701fa72e03c478e85bf2d4781a8216905b",
      "rawRecordSha256": "2e840e4c8a7ee42417baab93cab0a4f1b54a35db642d112e477dbaba5ec1fdb1",
      "sourceRecordOrdinal": 4874647
    }
  ],
  "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 Thun →

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-VGh1bg