*SET-U

English word origin

Etymology of meso-

Etymology tree Proto-Indo-European *me Proto-Indo-European *dʰeh₁-? Proto-Indo-European *-dʰe Proto-Indo-European *médʰi Proto-Indo-European *-os Proto-Indo-European *médʰyos Proto-Hellenic *métsos Ancient Greek μέσος (m

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

Middle or centre in location/position. · Between a macro- scale and micro- scale in scope or analysis. · Medium in size. · Between.

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

Etymology tree Proto-Indo-European *me Proto-Indo-European *dʰeh₁-? Proto-Indo-European *-dʰe Proto-Indo-European *médʰi Proto-Indo-European *-os Proto-Indo-European *médʰyos Proto-Hellenic *métsos Ancient Greek μέσος (mésos)der. English meso- From Ancient Greek μέσος (mésos, “middle”). Doublet of mid- and medio-.

Relationships mentioned by the source

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

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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    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":der",
        "3": "grc:μέσος",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *me\nProto-Indo-European *dʰeh₁-?\nProto-Indo-European *-dʰe\nProto-Indo-European *médʰi\nProto-Indo-European *-os\nProto-Indo-European *médʰyos\nProto-Hellenic *métsos\nAncient Greek μέσος (mésos)der.\nEnglish meso-\n[Appendix:Glossary#derived_terms|Derived]] from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"id\" : \"with\", \"children\" : [ { \"terms\" : [ { \"id\" : \"in the middle of\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*me\", \"lang\" : \"ine-pro\" }, { \"id\" : \"locative suffix\", \"children\" : [ { \"terms\" : [ { \"is_uncertain\" : true, \"id\" : \"do\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*dʰeh₁-\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-dʰe\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*médʰi\", \"lang\" : \"ine-pro\" }, { \"id\" : \"thematic\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-os\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*médʰyos\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Hellenic\", \"term\" : \"*métsos\", \"status\" : \"ok\", \"lang\" : \"grk-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"μέσος\", \"status\" : \"ok\", \"lang\" : \"grc\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"English\", \"term\" : \"meso-\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"meso-\">"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "grc",
        "3": "μέσος",
        "4": "",
        "5": "middle"
      },
      "expansion": "Ancient Greek μέσος (mésos, “middle”)"
    },
    {
      "name": "dbt",
      "args": {
        "1": "en",
        "2": "mid-",
        "3": "medio-"
      },
      "expansion": "Doublet of mid- and medio-"
    },
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      "args": {
        "1": "en",
        "2": ":der",
        "3": "grc:μέσος",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *me\nProto-Indo-European *dʰeh₁-?\nProto-Indo-European *-dʰe\nProto-Indo-European *médʰi\nProto-Indo-European *-os\nProto-Indo-European *médʰyos\nProto-Hellenic *métsos\nAncient Greek μέσος (mésos)der.\nEnglish meso-"
    }
  ],
  "links": [
    [
      "*me",
      "Reconstruction:Proto-Indo-European/me#Proto-Indo-European:_in_the_middle_of"
    ],
    [
      "*dʰeh₁-",
      "Reconstruction:Proto-Indo-European/dʰeh₁-#Proto-Indo-European:_do"
    ],
    [
      "*-dʰe",
      "Reconstruction:Proto-Indo-European/-dʰe#Proto-Indo-European:_locative_suffix"
    ],
    [
      "*médʰi",
      "Reconstruction:Proto-Indo-European/médʰi#Proto-Indo-European:_with"
    ],
    [
      "*-os",
      "Reconstruction:Proto-Indo-European/-os#Proto-Indo-European:_thematic"
    ],
    [
      "*médʰyos",
      "Reconstruction:Proto-Indo-European/médʰyos"
    ],
    [
      "*métsos",
      "Reconstruction:Proto-Hellenic/métsos"
    ],
    [
      "μέσος",
      "μέσος#Ancient_Greek"
    ],
    [
      "μέσος",
      "μέσος#Ancient_Greek"
    ],
    [
      "mid-",
      "mid-#English"
    ],
    [
      "medio-",
      "medio-#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "prefix",
      "glosses": [
        "Middle or centre in location/position.",
        "Between a macro- scale and micro- scale in scope or analysis.",
        "Medium in size.",
        "Between."
      ],
      "tags": [
        "morpheme"
      ],
      "recordId": "41af8a811bd20515ee5611817fdcaea8e46ec2fab03c7ac221aac22798d11066",
      "rawRecordSha256": "1a3ebeea098e21ed2e4e4989e0da8ecdaeea2666950f4b8eb4f16b5ae326736b",
      "sourceRecordOrdinal": 374199
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 9,
    "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 meso- →

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-bWVzby0