*SET-U

English word origin

Etymology of prism

Etymology tree Ancient Greek πρῑ́ω (prī́ō) Proto-Indo-European *-mn̥ Proto-Hellenic *-mə Ancient Greek -μᾰ (-mă) Ancient Greek πρίσμᾰ (prísmă)bor. Late Latin prismalbor. English prism Learned borrowing from Late Latin pr

1 source sectionExtended source reportWiktionary 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

An object having the shape of a geometrical prism (sense 1). · A cutting (“open passage at a level lower than the surrounding terrain, dug for a canal, railway, or road to go through”) or an embankment shaped like a prism (sense 1) or a number of prisms, such that its volume can be easily calculated. · A crystal in which the faces are parallel to the vertical axis. · A transparent block in the shape of a prism (sense 1), typically with triangular ends, used to reflect or refract light.

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

Etymology tree Ancient Greek πρῑ́ω (prī́ō) Proto-Indo-European *-mn̥ Proto-Hellenic *-mə Ancient Greek -μᾰ (-mă) Ancient Greek πρίσμᾰ (prísmă)bor. Late Latin prismalbor. English prism Learned borrowing from Late Latin prisma (“(geometry) prism”), from Ancient Greek πρίσμᾰ (prísmă, “anything sawn; sawdust; (Koine, geometry) prism”), from πρῐ́ζω (prĭ́zō) (a variant of πρῑ́ω (prī́ō, “to saw”), further etymology unknown) + -μᾰ (-mă, suffix forming neuter nouns denoting the effect or result of an action, etc.).

Relationships mentioned by the source

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

  • Root classification mention*per-ine-pro
  • Derivation mentionπρίσμᾰgrc · anything sawn; sawdust; (Koine, geometry) prism

This page abbreviates 3 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.

{
  "templates": [
    {
      "name": "senseno",
      "args": {
        "1": "en",
        "2": "geometry"
      },
      "expansion": "sense 1"
    },
    {
      "name": "senseno",
      "args": {
        "1": "en",
        "2": "crystal"
      },
      "expansion": "sense 1.3"
    },
    {
      "name": "senseno",
      "args": {
        "1": "en",
        "2": "optics"
      },
      "expansion": "sense 1.4"
    },
    {
      "name": "senseno",
      "args": {
        "1": "en",
        "2": "surveying"
      },
      "expansion": "sense 2"
    },
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":lbor",
        "3": "la-lat:prisma",
        "tree": "1"
      },
      "expansion": "Etymology tree\nAncient Greek πρῑ́ω (prī́ō)\nProto-Indo-European *-mn̥\nProto-Hellenic *-mə\nAncient Greek -μᾰ (-mă)\nAncient Greek πρίσμᾰ (prísmă)bor.\nLate Latin prismalbor.\nEnglish prism\n[Appendix:Glossary#learned_borrowing|Learned borrowing]] from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"bor.\", \"keyword_label\" : \"Borrowed from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"gloss\" : \"to saw; to cut\", \"children\" : [ ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"πρῑ́ω\", \"status\" : \"missing\", \"lang\" : \"grc\" }, { \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-mn̥\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Hellenic\", \"term\" : \"*-mə\", \"status\" : \"inline\", \"lang\" : \"grk-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"-μᾰ\", \"status\" : \"ok\", \"lang\" : \"grc\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"πρίσμᾰ\", \"status\" : \"ok\", \"lang\" : \"grc\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Late Latin\", \"term\" : \"prisma\", \"status\" : \"ok\", \"lang\" : \"la-lat\" } ], \"keyword\" : \"lbor\" } ], \"lang_name\" : \"English\", \"term\" : \"prism\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"prism\">"
    },
    {
      "name": "root",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*per-",
        "id": "fare"
      },
      "expansion": ""
    },
    {
      "name": "lbor",
      "args": {
        "1": "en",
        "2": "la-lat",
        "3": "prisma",
        "t": "(geometry) prism"
      },
      "expansion": "Learned borrowing from Late Latin prisma (“(geometry) prism”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "grc",
        "3": "πρίσμᾰ",
        "t": "anything sawn; sawdust; (Koine, geometry) prism"
      },
      "expansion": "Ancient Greek πρίσμᾰ (prísmă, “anything sawn; sawdust; (Koine, geometry) prism”)"
    },
    {
      "name": "glossary",
      "args": {
        "1": "suffix"
      },
      "expansion": "suffix"
    },
    {
      "name": "glossary",
      "args": {
        "1": "neuter"
      },
      "expansion": "neuter"
    },
    {
      "name": "glossary",
      "args": {
        "1": "noun"
      },
      "expansion": "noun"
    },
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":lbor",
        "3": "la-lat:prisma",
        "tree": "1"
      },
      "expansion": "Etymology tree\nAncient Greek πρῑ́ω (prī́ō)\nProto-Indo-European *-mn̥\nProto-Hellenic *-mə\nAncient Greek -μᾰ (-mă)\nAncient Greek πρίσμᾰ (prísmă)bor.\nLate Latin prismalbor.\nEnglish prism"
    }
  ],
  "links": [
    [
      "πρῑ́ω",
      "πρίω#Ancient_Greek"
    ],
    [
      "*-mn̥",
      "Reconstruction:Proto-Indo-European/-mn̥"
    ],
    [
      "*-mə",
      "Reconstruction:Proto-Hellenic/-mə"
    ],
    [
      "-μᾰ",
      "-μα#Ancient_Greek"
    ],
    [
      "πρίσμᾰ",
      "πρίσμα#Ancient_Greek"
    ],
    [
      "prisma",
      "prisma#Latin"
    ],
    [
      "prisma",
      "prisma#Latin"
    ],
    [
      "πρίσμᾰ",
      "πρίσμα#Ancient_Greek"
    ],
    [
      "πρῐ́ζω",
      "πρίζω#Ancient_Greek"
    ],
    [
      "πρῑ́ω",
      "πρίω#Ancient_Greek"
    ],
    [
      "-μᾰ",
      "-μα#Ancient_Greek"
    ]
  ],
  "references": [],
  "descendants": [
    {
      "lang": "Japanese",
      "lang_code": "ja",
      "word": "プリズム",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "purizumu"
    },
    {
      "lang": "Korean",
      "lang_code": "ko",
      "word": "프리즘",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "peurijeum"
    },
    {
      "lang": "Thai",
      "lang_code": "th",
      "word": "ปริซึม",
      "raw_tags": [
        "borrowed"
      ],
      "roman": "bprì-sʉm"
    }
  ],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "An object having the shape of a geometrical prism (sense 1).",
        "A cutting (“open passage at a level lower than the surrounding terrain, dug for a canal, railway, or road to go through”) or an embankment shaped like a prism (sense 1) or a number of prisms, such that its volume can be easily calculated.",
        "A crystal in which the faces are parallel to the vertical axis.",
        "A transparent block in the shape of a prism (sense 1), typically with triangular ends, used to reflect or refract light."
      ],
      "tags": [],
      "recordId": "378c220879ad870590547ada84c2f3937f24bf5ecfdba1504d7a218f55a44ce5",
      "rawRecordSha256": "bf289afb489a3d987c7884e386a7cc465481f80db96972ad330afaeca1969326",
      "sourceRecordOrdinal": 363621
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 3,
    "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 prism →

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-cHJpc20