*SET-U

English word origin

Etymology of cumai

From translingual Cu (copper) + Japanese 枚 (“まい, mai”) (sheet). Modeled after gomai (“5 sheets”) and sanmai (“3 sheets”).

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

A construction method for brazing steel sheets together by sandwiching copper sheets between them and performing an ersatz forge weld, for making Japanese-style blade steel. This method is used to add ornamental copper accents into forge-worked steel, such as a copper wave in a display blade. · A metal sandwich made by such a construction method

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

From translingual Cu (copper) + Japanese 枚 (“まい, mai”) (sheet). Modeled after gomai (“5 sheets”) and sanmai (“3 sheets”).

Relationships mentioned by the source

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

  • Derivation mentionCumul
  • Derivation mention枚ja
Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "mul",
        "3": "Cu"
      },
      "expansion": "translingual Cu"
    },
    {
      "name": "gloss",
      "args": {
        "1": "copper"
      },
      "expansion": "(copper)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "ja",
        "3": "枚",
        "4": "",
        "5": "まい, mai"
      },
      "expansion": "Japanese 枚 (“まい, mai”)"
    },
    {
      "name": "gloss",
      "args": {
        "1": "sheet"
      },
      "expansion": "(sheet)"
    }
  ],
  "links": [
    [
      "Cu",
      "Cu#Translingual"
    ],
    [
      "枚",
      "枚#Japanese"
    ],
    [
      "まい",
      "まい#Japanese"
    ],
    [
      "mai",
      "mai#Japanese"
    ],
    [
      "gomai",
      "gomai#English"
    ],
    [
      "sanmai",
      "sanmai#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A construction method for brazing steel sheets together by sandwiching copper sheets between them and performing an ersatz forge weld, for making Japanese-style blade steel. This method is used to add ornamental copper accents into forge-worked steel, such as a copper wave in a display blade.",
        "A metal sandwich made by such a construction method"
      ],
      "tags": [
        "uncountable",
        "countable"
      ],
      "recordId": "d83867a560c5ab4a6b8a18a3f762e4606ac7a144c62fce73f6c407cae649acb9",
      "rawRecordSha256": "b62690532bd7c00dbae6abaf13223a206ec53bcd373000fa580fb69c5d75f80f",
      "sourceRecordOrdinal": 7262395
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 0,
    "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 cumai →

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-Y3VtYWk