*SET-U

English word origin

Etymology of jet

Etymology tree Proto-Indo-European *(H)yeh₁- Proto-Indo-European *-kt Proto-Indo-European *(H)yéh₁kt ~ *(H)ih₁kéntder. Latin iaciō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin iactus Vulgar Latin *iectus

4 source sectionsExtended source reportWiktionary original ↗
In this entry · 4 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

Original entry ↗
verb

To spray out of a container. · To spray with liquid from a container. · To travel on a jet aircraft or otherwise by jet propulsion · To move (running, walking etc.) rapidly around

adj

Propelled by turbine engines.

noun

A collimated stream, spurt or flow of liquid or gas from a pressurized container, an engine, etc. · A spout or nozzle for creating a jet of fluid. · A type of airplane using jet engines rather than propellers. · A turbine.

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

Etymology tree Proto-Indo-European *(H)yeh₁- Proto-Indo-European *-kt Proto-Indo-European *(H)yéh₁kt ~ *(H)ih₁kéntder. Latin iaciō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin iactus Vulgar Latin *iectus Old French get French jetbor. English jet Borrowed from French jet (“spurt”, literally “a throw”), from Old French get, giet, from Vulgar Latin *iectus, *jectus, from Latin iactus (“a throwing, a throw”), from iacere (“to throw”). See abject, ejaculate, gist, jess, jut. Cognate with Spanish echar.

Relationships mentioned by the source

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

  • Borrowed-form mentionjetfr
  • Derivation mentiongetfro
  • Derivation mentioniactusla
  • Cognate mentionechares

This page abbreviates 10 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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      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":bor",
        "3": "fr:jet<id:throw>",
        "id": "throw",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *(H)yeh₁-\nProto-Indo-European *-kt\nProto-Indo-European *(H)yéh₁kt ~ *(H)ih₁kéntder.\nLatin iaciō\nProto-Indo-European *-tus\nProto-Italic *-tus\nLatin -tus\nLatin iactus\nVulgar Latin *iectus\nOld French get\nFrench jetbor.\nEnglish jet\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"id\" : \"throw\", \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"alt\" : \"*iectus\", \"lang_name\" : \"Vulgar Latin\", \"status\" : \"inline\", \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"alt\" : \"*(H)yéh₁kt ~ *(H)ih₁ként\", \"children\" : [ { \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*(H)yeh₁-\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" }, { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-kt\", \"status\" : \"missing\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*(H)yéh₁kt\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Latin\", \"term\" : \"iaciō\", \"status\" : \"ok\", \"lang\" : \"la\" }, { \"id\" : \"action noun\", \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"id\" : \"action noun\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-tus\", \"lang\" : \"ine-pro\", \"pos\" : \"suffix deriving action nouns from verb roots\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Italic\", \"term\" : \"*-tus\", \"status\" : \"inline\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"-tus\", \"lang\" : \"la\", \"pos\" : \"forming action nouns\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Latin\", \"term\" : \"iactus\", \"status\" : \"ok\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang\" : \"la-vul\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Old French\", \"term\" : \"get\", \"status\" : \"inline\", \"lang\" : \"fro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"French\", \"term\" : \"jet\", \"lang\" : \"fr\" } ], \"keyword\" : \"bor\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"jet\", \"lang\" : \"en\" }\" data-id=\"throw\" data-lang=\"en\" data-title=\"jet\" id=\"English:_throw\">"
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        "4": "",
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      "expansion": "Borrowed from French jet (“spurt”, literally “a throw”)"
    },
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    }
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    ],
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Source etymology 2 · variant 1/2

Original entry ↗
noun

A hard, black form of coal, sometimes used in jewellery. · The colour of jet coal, deep grey.

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

From Middle English get, geet, gete, from a northern form of Old French jayet, jaiet, gaiet, from Latin gagātēs, from Ancient Greek Γαγάτης (Gagátēs), from Γάγας (Gágas, “a town and river in Lycia”). Doublet of gagate.

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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Source etymology 2 · variant 2/2

Original entry ↗
adj

Very dark black in colour.

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

From Middle English get, geet, gete, from a northern form of Old French jayet, jaiet, gaiet, from Latin gagātēs, from Ancient Greek Γαγάτης (Gagátēs), from Γάγας (Gágas, “a town and river in Lycia”). Doublet of gagate.

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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Source etymology 3

Original entry ↗
noun

an operation that takes a differentiable function f and produces a polynomial, the Taylor polynomial (truncated Taylor series) of f, at each point of its domain.

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

Etymology tree Proto-Indo-European *(H)yeh₁- Proto-Indo-European *-kt Proto-Indo-European *(H)yéh₁kt ~ *(H)ih₁kéntder. Latin iaciō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin iactus Vulgar Latin *iectus Old French get French jetbor. English jet Borrowed from French jet.

Inspect preserved source fields

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

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      "-tus",
      "-tus#Latin:_action_noun"
    ],
    [
      "iactus",
      "iactus#Latin"
    ],
    [
      "get",
      "get#Old_French"
    ],
    [
      "jet",
      "jet#French"
    ],
    [
      "jet",
      "jet#French"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "an operation that takes a differentiable function f and produces a polynomial, the Taylor polynomial (truncated Taylor series) of f, at each point of its domain."
      ],
      "tags": [],
      "recordId": "ed3700fe66b5d8f26478b5d8053fa8fda3d26df52174fb9da61a6f59be9ea1a0",
      "rawRecordSha256": "40138af811692ca2c4c9f69a7418e7b4f142e3152a46dfb0b92357470da5f76a",
      "sourceRecordOrdinal": 146118
    }
  ],
  "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 jet →

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-amV0