*SET-U

English word origin

Etymology of bluff

Probably from Dutch bluffen (“to brag”), from Middle Dutch bluffen (“to make something swell; to bluff”); or from the Dutch noun bluf (“bragging”). Related to German verblüffen (“to stump, perplex”).

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 · variant 1/2

Original entry ↗
verb

To make a bluff; to give the impression that one’s hand is stronger than it is. · To frighten, deter, or deceive with a false show of strength or confidence; to give a false impression of strength or temerity in order to intimidate or gain some advantage. · To perform or achieve by bluffing. · To give false information intentionally, to lie (to someone), to deceive; to put on an act.

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

Probably from Dutch bluffen (“to brag”), from Middle Dutch bluffen (“to make something swell; to bluff”); or from the Dutch noun bluf (“bragging”). Related to German verblüffen (“to stump, perplex”).

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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        "1": "en",
        "2": "nl",
        "3": "bluffen",
        "4": "",
        "5": "to brag"
      },
      "expansion": "Dutch bluffen (“to brag”)"
    },
    {
      "name": "der",
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        "2": "dum",
        "3": "bluffen",
        "4": "",
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      },
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    },
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        "2": "-"
      },
      "expansion": "Dutch"
    },
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      "name": "cog",
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        "t": "to stump, perplex"
      },
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    }
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      "bluf#Dutch"
    ],
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      "verblüffen",
      "verblüffen#German"
    ]
  ],
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    {
      "pos": "verb",
      "glosses": [
        "To make a bluff; to give the impression that one’s hand is stronger than it is.",
        "To frighten, deter, or deceive with a false show of strength or confidence; to give a false impression of strength or temerity in order to intimidate or gain some advantage.",
        "To perform or achieve by bluffing.",
        "To give false information intentionally, to lie (to someone), to deceive; to put on an act."
      ],
      "tags": [
        "Manglish",
        "Singlish"
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Source etymology 1 · variant 2/2

Original entry ↗
noun

An act of bluffing; a false expression of the strength of one’s position in order to intimidate or deceive; braggadocio. · An attempt to represent oneself as holding a stronger hand than one actually does. · The card game poker. · One who bluffs; a bluffer.

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

Probably from Dutch bluffen (“to brag”), from Middle Dutch bluffen (“to make something swell; to bluff”); or from the Dutch noun bluf (“bragging”). Related to German verblüffen (“to stump, perplex”).

Relationships mentioned by the source

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

This page abbreviates 1 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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        "3": "bluffen",
        "4": "",
        "5": "to brag"
      },
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    },
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      "name": "der",
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    },
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      },
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    },
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        "t": "to stump, perplex"
      },
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    }
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      "bluf#Dutch"
    ],
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      "verblüffen#German"
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      "lang": "Hebrew",
      "lang_code": "he",
      "word": "בלוף",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "blof"
    },
    {
      "lang": "Hebrew",
      "lang_code": "he",
      "word": "בילף",
      "raw_tags": [
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    },
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    },
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      "lang": "Portuguese",
      "lang_code": "pt",
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      ]
    }
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        "An act of bluffing; a false expression of the strength of one’s position in order to intimidate or deceive; braggadocio.",
        "An attempt to represent oneself as holding a stronger hand than one actually does.",
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        "One who bluffs; a bluffer."
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Source etymology 2

Original entry ↗
noun

A high, steep bank, for example by a river or the sea, or beside a ravine or plain; a cliff with a broad face. · A small wood or stand of trees, typically poplar or willow.

adj

Having a broad, flattened front. · Rising steeply with a flat or rounded front. · Surly; churlish; gruff; rough. · Roughly frank and hearty in one's manners.

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

Related to Middle Low German blaff (“smooth”).

Relationships mentioned by the source

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

  • Cognate mentionblaffgml · smooth
Inspect preserved source fields

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

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      },
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    }
  ],
  "links": [
    [
      "blaff",
      "blaff#Middle_Low_German"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
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        "A small wood or stand of trees, typically poplar or willow."
      ],
      "tags": [
        "Canadian-Prairies"
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      ],
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Source etymology 3

Original entry ↗
verb

To fluff, puff or swell up.

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

Possibly onomatopoeic, perhaps related to blow and puff.

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.

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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
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID
w-Ymx1ZmY