*SET-U

English word origin

Etymology of viff

From the initial letters of "vectoring in forward flight".

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 ↗
noun

A change in direction by changing the direction of thrust from the engine(s). · The ability to make such changes in direction.

verb

To change direction by changing the direction of thrust from the engine(s).

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

From the initial letters of "vectoring in forward flight".

Inspect preserved source fields

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

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  "templates": [],
  "links": [
    [
      "vector",
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    ],
    [
      "in",
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    ],
    [
      "forward",
      "forward"
    ],
    [
      "flight",
      "flight"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A change in direction by changing the direction of thrust from the engine(s).",
        "The ability to make such changes in direction."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "recordId": "ac3d3fef11b545d65dfdf1b352ec8a243b954137b4c2d418bd27183ef804482f",
      "rawRecordSha256": "fbf66d6cbb89b9afa57e4ee6762d20a572cfcd7642680e467bace8c517bcaed7",
      "sourceRecordOrdinal": 8272433
    },
    {
      "pos": "verb",
      "glosses": [
        "To change direction by changing the direction of thrust from the engine(s)."
      ],
      "tags": [],
      "recordId": "b7fbaa1a0a19c3a079e73f114e5c5faa69cd1e9ae3e55a7f9990ed2c89928dd2",
      "rawRecordSha256": "a6e73d7f63655317deddc2597decfac07aa0f66590ffd7e930aed52f194fad59",
      "sourceRecordOrdinal": 8272432
    }
  ],
  "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 viff →

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-dmlmZg