*SET-U

English word origin

Etymology of mega-

Etymology tree Proto-Indo-European *méǵh₂s Proto-Hellenic *mégas Ancient Greek μέγᾰς (mégăs)der. English mega- From Ancient Greek μέγας (mégas, “great, large, mighty”), from Proto-Indo-European *meǵh₂s (“great”). Cognate

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 ↗
prefix

Very large, great. · In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by one million (10⁶). · Multiplying the unit to which it is attached by 2²⁰ (= 1,048,576, the binary number closest to a million). Computing symbol: Mi. · Multiplying the unit to which it is attached by 2¹⁰ × 10³ (= 1,024,000, the binary round number closest to a million).

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

Etymology tree Proto-Indo-European *méǵh₂s Proto-Hellenic *mégas Ancient Greek μέγᾰς (mégăs)der. English mega- From Ancient Greek μέγας (mégas, “great, large, mighty”), from Proto-Indo-European *meǵh₂s (“great”). Cognate with Latin magnus, Sanskrit मह (maha, “great, massive, large-scale, epic”), and with Germanic words: Gothic 𐌼𐌹𐌺𐌹𐌻𐍃 (mikils), Old English micel, Middle English muchel, English much, Old High German mihhil, Old Norse mikill, Danish meget.

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.

{
  "templates": [
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":der",
        "3": "grc:μέγᾰς",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *méǵh₂s\nProto-Hellenic *mégas\nAncient Greek μέγᾰς (mégăs)der.\nEnglish mega-\n[Appendix:Glossary#derived_terms|Derived]] from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*méǵh₂s\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Hellenic\", \"term\" : \"*mégas\", \"status\" : \"inline\", \"lang\" : \"grk-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"μέγᾰς\", \"status\" : \"ok\", \"lang\" : \"grc\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"English\", \"term\" : \"mega-\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"mega-\">"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "grc",
        "3": "μέγας",
        "4": "",
        "5": "great, large, mighty"
      },
      "expansion": "Ancient Greek μέγας (mégas, “great, large, mighty”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*meǵh₂s",
        "4": "",
        "5": "great"
      },
      "expansion": "Proto-Indo-European *meǵh₂s (“great”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "la",
        "2": "magnus"
      },
      "expansion": "Latin magnus"
    },
    {
      "name": "cog",
      "args": {
        "1": "sa",
        "2": "मह",
        "3": "",
        "4": "great, massive, large-scale, epic"
      },
      "expansion": "Sanskrit मह (maha, “great, massive, large-scale, epic”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "got",
        "2": "𐌼𐌹𐌺𐌹𐌻𐍃"
      },
      "expansion": "Gothic 𐌼𐌹𐌺𐌹𐌻𐍃 (mikils)"
    },
    {
      "name": "cog",
      "args": {
        "1": "ang",
        "2": "micel"
      },
      "expansion": "Old English micel"
    },
    {
      "name": "cog",
      "args": {
        "1": "enm",
        "2": "muchel"
      },
      "expansion": "Middle English muchel"
    },
    {
      "name": "cog",
      "args": {
        "1": "en",
        "2": "much"
      },
      "expansion": "English much"
    },
    {
      "name": "cog",
      "args": {
        "1": "goh",
        "2": "mihhil"
      },
      "expansion": "Old High German mihhil"
    },
    {
      "name": "cog",
      "args": {
        "1": "non",
        "2": "mikill"
      },
      "expansion": "Old Norse mikill"
    },
    {
      "name": "cog",
      "args": {
        "1": "da",
        "2": "meget"
      },
      "expansion": "Danish meget"
    },
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":der",
        "3": "grc:μέγᾰς",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *méǵh₂s\nProto-Hellenic *mégas\nAncient Greek μέγᾰς (mégăs)der.\nEnglish mega-"
    }
  ],
  "links": [
    [
      "*méǵh₂s",
      "Reconstruction:Proto-Indo-European/méǵh₂s"
    ],
    [
      "*mégas",
      "Reconstruction:Proto-Hellenic/mégas"
    ],
    [
      "μέγᾰς",
      "μέγας#Ancient_Greek"
    ],
    [
      "μέγας",
      "μέγας#Ancient_Greek"
    ],
    [
      "*meǵh₂s",
      "Reconstruction:Proto-Indo-European/meǵh₂s"
    ],
    [
      "magnus",
      "magnus#Latin"
    ],
    [
      "मह",
      "मह#Sanskrit"
    ],
    [
      "𐌼𐌹𐌺𐌹𐌻𐍃",
      "𐌼𐌹𐌺𐌹𐌻𐍃#Gothic"
    ],
    [
      "micel",
      "micel#Old_English"
    ],
    [
      "muchel",
      "muchel#Middle_English"
    ],
    [
      "much",
      "much#English"
    ],
    [
      "mihhil",
      "mihhil#Old_High_German"
    ],
    [
      "mikill",
      "mikill#Old_Norse"
    ],
    [
      "meget",
      "meget#Danish"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "prefix",
      "glosses": [
        "Very large, great.",
        "In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by one million (10⁶).",
        "Multiplying the unit to which it is attached by 2²⁰ (= 1,048,576, the binary number closest to a million). Computing symbol: Mi.",
        "Multiplying the unit to which it is attached by 2¹⁰ × 10³ (= 1,024,000, the binary round number closest to a million)."
      ],
      "tags": [
        "morpheme"
      ],
      "recordId": "88c37111bb8e2bab502d03c956424095512dc8f3397da34cdcb6a486b7e540ce",
      "rawRecordSha256": "447f34f40bd84e064fb341705df8fc747555450146ab7b2805c3a2a37209abc4",
      "sourceRecordOrdinal": 178945
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 1,
    "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 mega- →

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-bWVnYS0