*SET-U

English word origin

Etymology of pith

The noun is derived from Middle English pith, pithe (“soft interior; pith, pulp”) [and other forms], from Old English piþa [and other forms], from Proto-Germanic *piþô, from earlier *piþō (oblique *pittan); further etymo

2 source sectionsExtended source reportWiktionary original ↗
In this entry · 2 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 ↗
noun

The soft, spongy substance inside plant parts; specifically, the parenchyma in the centre of the roots and stems of many plants and trees. · The albedo (“whitish inner portion of the rind”) of a citrus fruit. · The soft tissue inside a human or animal body or one of their organs; specifically, the spongy interior substance of a horn or the shaft of a feather. · Chiefly of animals: the soft tissue inside a spinal cord; the spinal marrow; also, the spinal cord itself.

verb

To render insensate or kill (an animal, especially cattle or a laboratory animal) by cutting, piercing, or otherwise destroying the spinal cord. · To extract the pith from (something or (figurative) someone).

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

The noun is derived from Middle English pith, pithe (“soft interior; pith, pulp”) [and other forms], from Old English piþa [and other forms], from Proto-Germanic *piþô, from earlier *piþō (oblique *pittan); further etymology unknown. Doublet of pit (“seed or stone inside a fruit”). The verb Middle English pethen (“to give courage or strength”), derived from pith (noun), did not survive into modern English. Cognates * Dutch peen (“carrot”) * Middle Low German peddek, peddik, piddek (“bone marrow; medulla; spinal cord; inner part of a horn or quill; (figurative) core, essence”) (the last spelling rare) (Low German Peddik (“core; pulp”)) * West Frisian piid (“pulp, kernel”)

Relationships mentioned by the source

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

  • Inherited-form mentionpithenm
  • Inherited-form mentionpiþaang
  • Inherited-form mention*piþôgem-pro
  • Doublet mentionpiten · seed or stone inside a fruit
  • Cognate mentionpethenenm · to give courage or strength
  • Cognate mentionpeennl · carrot
  • Cognate mentionpeddekgml
  • Cognate mentionPeddiknds · core; pulp
  • Cognate mentionpiidfy · pulp, kernel

This page abbreviates 9 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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  "templates": [
    {
      "name": "senseno",
      "args": {
        "1": "en",
        "2": "plant"
      },
      "expansion": "etymology 1, noun sense 1.1"
    },
    {
      "name": "senseno",
      "args": {
        "1": "en",
        "2": "plant"
      },
      "expansion": "etymology 1, noun sense 1.1"
    },
    {
      "name": "senseno",
      "args": {
        "1": "en",
        "2": "albedo"
      },
      "expansion": "etymology 1, noun sense 1.2"
    },
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    },
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      "name": "nb...",
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        "otherforms": "1"
      },
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    },
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      "name": "inh",
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        "2": "ang",
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      },
      "expansion": "Old English piþa"
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      "name": "nb...",
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        "otherforms": "1"
      },
      "expansion": "[and other forms]"
    },
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      "expansion": "oblique"
    },
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    },
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        "1": "verb"
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      },
      "expansion": "Middle English pethen (“to give courage or strength”)"
    },
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      "name": "col-top",
      "args": {
        "1": "2",
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      },
      "expansion": "Cognates"
    },
    {
      "name": "cog",
      "args": {
        "1": "nl",
        "2": "peen",
        "t": "carrot"
      },
      "expansion": "Dutch peen (“carrot”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "gml",
        "2": "peddek"
      },
      "expansion": "Middle Low German peddek"
    },
    {
      "name": "qualifier",
      "args": {
        "1": "the last spelling rare"
      },
      "expansion": "(the last spelling rare)"
    },
    {
      "name": "cog",
      "args": {
        "1": "nds",
        "2": "Peddik",
        "t": "core; pulp"
      },
      "expansion": "Low German Peddik (“core; pulp”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fy",
        "2": "piid",
        "t": "pulp, kernel"
      },
      "expansion": "West Frisian piid (“pulp, kernel”)"
    }
  ],
  "links": [
    [
      "pith",
      "pith#Middle_English"
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      "pithe#Middle_English"
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      "piþa#Old_English"
    ],
    [
      "*piþô",
      "Reconstruction:Proto-Germanic/piþô"
    ],
    [
      "*piþō",
      "Reconstruction:Proto-Germanic/piþō"
    ],
    [
      "*pittan",
      "Reconstruction:Proto-Germanic/pittan"
    ],
    [
      "pit",
      "pit#English"
    ],
    [
      "pethen",
      "pethen#Middle_English"
    ],
    [
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    ],
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    ],
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    ],
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    ],
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Source etymology 2

Original entry ↗
noun

One divided by pi, that is, 1/π (approximately 0.31831…).

adj

The ordinal form of the number pi (π; approximately 3.14159…).

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

From pi (“constant representing the ratio of the circumference of a Euclidean circle to its diameter”) + -th (suffix forming ordinal numerals).

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

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Contribute located evidence for pith →

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-cGl0aA