"twifeald sweg" meaning in Old English

{
  "etymology_templates": [
    {
      "args": {
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        "2": "la",
        "3": "diphthongus",
        "lit": "twofold-sound"
      },
      "expansion": "Calque of Latin diphthongus (literally “twofold-sound”)",
      "name": "calque"
    }
  ],
  "etymology_text": "Calque of Latin diphthongus (literally “twofold-sound”)",
  "forms": [
    {
      "form": "twifeald swēġ",
      "tags": [
        "canonical",
        "masculine"
      ]
    }
  ],
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        "3": "",
        "4": "",
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        "g3": "",
        "head": "twifeald swēġ",
        "head2": "",
        "sort": ""
      },
      "expansion": "twifeald swēġ m",
      "name": "head"
    },
    {
      "args": {
        "1": "m",
        "head": "twifeald swēġ"
      },
      "expansion": "twifeald swēġ m",
      "name": "ang-noun"
    }
  ],
  "lang": "Old English",
  "lang_code": "ang",
  "pos": "noun",
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        {
          "kind": "other",
          "name": "Old English entries with incorrect language header",
          "parents": [
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          "source": "w"
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          "langcode": "ang",
          "name": "Phonetics",
          "orig": "ang:Phonetics",
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            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
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            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Dyptongvs is a diphthong or twofold syllable, and [in Latin] there are four...",
          "text": "c. 995, Ælfric, Excerptiones de Arte Grammatica Anglice\nDyptongvs is twyfeald swēġ oððe twyfeald stæfġefēġ, and ðāra synd fēower...",
          "type": "quotation"
        }
      ],
      "glosses": [
        "diphthong"
      ],
      "id": "en-twifeald_sweg-ang-noun-jb1ocCtv",
      "links": [
        [
          "diphthong",
          "diphthong"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "/ˈtwiˌfæ͜ɑld sweːj/"
    },
    {
      "other": "[ˈtwiˌfæ͜ɑɫd sweːj]"
    }
  ],
  "word": "twifeald sweg"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ang",
        "2": "la",
        "3": "diphthongus",
        "lit": "twofold-sound"
      },
      "expansion": "Calque of Latin diphthongus (literally “twofold-sound”)",
      "name": "calque"
    }
  ],
  "etymology_text": "Calque of Latin diphthongus (literally “twofold-sound”)",
  "forms": [
    {
      "form": "twifeald swēġ",
      "tags": [
        "canonical",
        "masculine"
      ]
    }
  ],
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    {
      "args": {
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        "g3": "",
        "head": "twifeald swēġ",
        "head2": "",
        "sort": ""
      },
      "expansion": "twifeald swēġ m",
      "name": "head"
    },
    {
      "args": {
        "1": "m",
        "head": "twifeald swēġ"
      },
      "expansion": "twifeald swēġ m",
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  ],
  "lang": "Old English",
  "lang_code": "ang",
  "pos": "noun",
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    {
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        "Old English terms derived from Latin",
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        {
          "english": "Dyptongvs is a diphthong or twofold syllable, and [in Latin] there are four...",
          "text": "c. 995, Ælfric, Excerptiones de Arte Grammatica Anglice\nDyptongvs is twyfeald swēġ oððe twyfeald stæfġefēġ, and ðāra synd fēower...",
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        }
      ],
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      ]
    }
  ],
  "sounds": [
    {
      "other": "/ˈtwiˌfæ͜ɑld sweːj/"
    },
    {
      "other": "[ˈtwiˌfæ͜ɑɫd sweːj]"
    }
  ],
  "word": "twifeald sweg"
}