*SET-U

English word origin

Etymology of flash

In some senses, from Middle English flasshen, a variant of flasken, flaskien (“to sprinkle, splash”), which was likely of imitative origin; in other senses probably of North Germanic origin akin to Swedish dialectal flas

3 source sectionsExtended source reportWiktionary original ↗
In this entry · 3 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.

Source etymology 1 · variant 1/2

Original entry ↗
adj

Expensive-looking and demanding attention; stylish; showy. · Having plenty of ready money. · Liable to show off expensive possessions or money. · Occurring very rapidly, almost instantaneously.

verb

To cause to shine briefly or intermittently. · To blink; to shine or illuminate intermittently. · To be visible briefly. · To make visible briefly.

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

In some senses, from Middle English flasshen, a variant of flasken, flaskien (“to sprinkle, splash”), which was likely of imitative origin; in other senses probably of North Germanic origin akin to Swedish dialectal flasa (“to burn brightly, blaze”), related to flare. Compare also Icelandic flasa (“to rush, go hastily”).

Relationships mentioned by the source

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

  • Derivation mentionflasshenenm
  • Cognate mentionflasais · to rush, go hastily

This page abbreviates 20 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.

Inspect preserved source fields

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

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        "id": "intermittently flash"
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      "flaskien",
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    ],
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      "sprinkle",
      "sprinkle"
    ],
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      "splash",
      "splash#Verb"
    ],
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      "flasa",
      "flasa#Swedish"
    ],
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      "burn",
      "burn#Verb"
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    ],
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      "blaze",
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    ],
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        "Occurring very rapidly, almost instantaneously."
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Source etymology 1 · variant 2/2

Original entry ↗
noun

A sudden, short, temporary burst of light. · A very short amount of time. · A flashlight; an electric torch. · A sudden and brilliant burst, as of genius or wit.

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

In some senses, from Middle English flasshen, a variant of flasken, flaskien (“to sprinkle, splash”), which was likely of imitative origin; in other senses probably of North Germanic origin akin to Swedish dialectal flasa (“to burn brightly, blaze”), related to flare. Compare also Icelandic flasa (“to rush, go hastily”).

Relationships mentioned by the source

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

  • Derivation mentionflasshenenm
  • Cognate mentionflasais · to rush, go hastily

This page abbreviates 17 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.

Inspect preserved source fields

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

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Source etymology 2

Original entry ↗
noun

A pool of water, in some areas especially one that is marshy, and/or one formed by subsidence of the ground due to mining. (Compare flush (“marsh; pool”).) · A reservoir and sluiceway beside a navigable stream, just above a shoal, so that the stream may pour in water as boats pass, and thus bear them over the shoal.

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

From Middle English flashe, flaske, also found as flosche and flushe (whence modern English flosh and flush), used in Middle and modern English for bodies of water with varying emphasis on them being "pools" or "marshes". It is not entirely clear whether these constitute a single term with varied spellings, or have distinct etymologies. The form flash, flashe is often suggested to be from Old French flache, French flaque, which is of Germanic origin, akin to Middle Dutch vlacke (“an estuary, flats with stagnant pools”). See flush for more on that form.

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.

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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 flash →

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
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Import run
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Permanent entry ID
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