*SET-U

English word origin

Etymology of oast

From Middle English ost, from Old English āst (“a kiln”), from Proto-Germanic *aistaz (“kiln”), from *aisǭ (“fire”), from Proto-Indo-European *h₂eydʰ- (“to burn; fire”). Cognate with Dutch eest (“kiln”), Middle Low Germa

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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 ↗
noun

A kiln for drying tobacco, malt and especially hops.

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

From Middle English ost, from Old English āst (“a kiln”), from Proto-Germanic *aistaz (“kiln”), from *aisǭ (“fire”), from Proto-Indo-European *h₂eydʰ- (“to burn; fire”). Cognate with Dutch eest (“kiln”), Middle Low German eiste (“kiln”), Latin aedes (“house; hearth”), Old English ād (“fire; funeral pyre”).

Relationships mentioned by the source

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

  • Root classification mention*h₂eydʰ-ine-pro
  • Inherited-form mentionostenm
  • Inherited-form mentionāstang
  • Inherited-form mention*aistazgem-pro
  • Inherited-form mention*h₂eydʰ-ine-pro
  • Cognate mentioneestnl
  • Cognate mentioneistegml
  • Cognate mentionaedesla
  • Cognate mentionādang
Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "root",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*h₂eydʰ-"
      },
      "expansion": ""
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "ost"
      },
      "expansion": "Middle English ost"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ang",
        "3": "āst",
        "4": "",
        "5": "a kiln"
      },
      "expansion": "Old English āst (“a kiln”)"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "gem-pro",
        "3": "*aistaz",
        "4": "",
        "5": "kiln"
      },
      "expansion": "Proto-Germanic *aistaz (“kiln”)"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*h₂eydʰ-",
        "4": "",
        "5": "to burn; fire"
      },
      "expansion": "Proto-Indo-European *h₂eydʰ- (“to burn; fire”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nl",
        "2": "eest",
        "3": "",
        "4": "kiln"
      },
      "expansion": "Dutch eest (“kiln”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "gml",
        "2": "eiste",
        "3": "",
        "4": "kiln"
      },
      "expansion": "Middle Low German eiste (“kiln”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "la",
        "2": "aedes",
        "3": "",
        "4": "house; hearth"
      },
      "expansion": "Latin aedes (“house; hearth”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "ang",
        "2": "ād",
        "3": "",
        "4": "fire; funeral pyre"
      },
      "expansion": "Old English ād (“fire; funeral pyre”)"
    }
  ],
  "links": [
    [
      "ost",
      "ost#Middle_English"
    ],
    [
      "āst",
      "ast#Old_English"
    ],
    [
      "*aistaz",
      "Reconstruction:Proto-Germanic/aistaz"
    ],
    [
      "*aisǭ",
      "Reconstruction:Proto-Germanic/aisǭ"
    ],
    [
      "*h₂eydʰ-",
      "Reconstruction:Proto-Indo-European/h₂eydʰ-"
    ],
    [
      "eest",
      "eest#Dutch"
    ],
    [
      "eiste",
      "eiste#Middle_Low_German"
    ],
    [
      "aedes",
      "aedes#Latin"
    ],
    [
      "ād",
      "ad#Old_English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A kiln for drying tobacco, malt and especially hops."
      ],
      "tags": [
        "UK"
      ],
      "recordId": "ee6e8fd7c18be1cdf57b88a056b86338de4806ab050cc57130278e7f7d5bd83a",
      "rawRecordSha256": "af4ebe8e8775e409ec7c0ff13fe1359b0b2a7d451b90fae9d1e73bafde7ef2ff",
      "sourceRecordOrdinal": 854194
    }
  ],
  "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 oast →

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-b2FzdA