"diw-" meaning in Cornish

{
  "etymology_text": "From diw (“two”).",
  "head_templates": [
    {
      "args": {
        "1": "kw",
        "2": "prefix"
      },
      "expansion": "diw-",
      "name": "head"
    }
  ],
  "lang": "Cornish",
  "lang_code": "kw",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Cornish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Prefix used in forming the dual number of feminine singular nouns."
      ],
      "id": "en-diw--kw-prefix-kZ0EPG8y",
      "links": [
        [
          "dual",
          "dual"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[diʊ]",
      "tags": [
        "Revived-Middle-Cornish"
      ]
    }
  ],
  "word": "diw-"
}

{
  "etymology_text": "From diw (“two”).",
  "head_templates": [
    {
      "args": {
        "1": "kw",
        "2": "prefix"
      },
      "expansion": "diw-",
      "name": "head"
    }
  ],
  "lang": "Cornish",
  "lang_code": "kw",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Cornish entries with incorrect language header",
        "Cornish lemmas",
        "Cornish prefixes",
        "Cornish terms with IPA pronunciation"
      ],
      "glosses": [
        "Prefix used in forming the dual number of feminine singular nouns."
      ],
      "links": [
        [
          "dual",
          "dual"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[diʊ]",
      "tags": [
        "Revived-Middle-Cornish"
      ]
    }
  ],
  "word": "diw-"
}