"Old Scratch" meaning in English

{
  "etymology_templates": [
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        "2": "scrat"
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      "expansion": "scrat",
      "name": "m"
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    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "scrat"
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      "expansion": "Middle English scrat",
      "name": "der"
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    {
      "args": {
        "1": "enm",
        "2": "skratt"
      },
      "expansion": "skratt",
      "name": "m"
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    {
      "args": {
        "1": "enm",
        "2": "scratte"
      },
      "expansion": "scratte",
      "name": "m"
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    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "skratti",
        "4": "",
        "5": "a type of demon"
      },
      "expansion": "Old Norse skratti (“a type of demon”)",
      "name": "der"
    }
  ],
  "etymology_text": "Probably an alteration of scrat, from Middle English scrat, skratt, scratte, ultimately from Old Norse skratti (“a type of demon”).",
  "head_templates": [
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      "args": {
        "head": "Old Scratch"
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      "expansion": "Old Scratch",
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "kind": "other",
          "name": "Midland US English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Southern US English",
          "parents": [],
          "source": "w"
        },
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          "kind": "topical",
          "langcode": "en",
          "name": "Theology",
          "orig": "en:Theology",
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            "All topics",
            "Culture",
            "Fundamental",
            "Society"
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        }
      ],
      "glosses": [
        "The Devil."
      ],
      "id": "en-Old_Scratch-en-name-5u61vpvU",
      "links": [
        [
          "Devil",
          "Devil"
        ],
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          "The American Heritage Dictionary of the English Language",
          "w:The American Heritage Dictionary of the English Language"
        ],
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          "Houghton Mifflin Harcourt",
          "w:Houghton Mifflin Harcourt"
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      ],
      "qualifier": "chiefly Midland US",
      "raw_glosses": [
        "(chiefly Midland US, Southern US) The Devil."
      ],
      "synonyms": [
        {
          "word": "Old Nick"
        },
        {
          "word": "Old Serpent"
        },
        {
          "word": "Satan"
        }
      ],
      "tags": [
        "Southern-US"
      ],
      "wikipedia": [
        "Old Scratch"
      ]
    }
  ],
  "word": "Old Scratch"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "scrat"
      },
      "expansion": "scrat",
      "name": "m"
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    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "scrat"
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      "expansion": "Middle English scrat",
      "name": "der"
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    {
      "args": {
        "1": "enm",
        "2": "skratt"
      },
      "expansion": "skratt",
      "name": "m"
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    {
      "args": {
        "1": "enm",
        "2": "scratte"
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      "expansion": "scratte",
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      "args": {
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        "3": "skratti",
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        "5": "a type of demon"
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      "expansion": "Old Norse skratti (“a type of demon”)",
      "name": "der"
    }
  ],
  "etymology_text": "Probably an alteration of scrat, from Middle English scrat, skratt, scratte, ultimately from Old Norse skratti (“a type of demon”).",
  "head_templates": [
    {
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        "head": "Old Scratch"
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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      "glosses": [
        "The Devil."
      ],
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          "Devil",
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      "raw_glosses": [
        "(chiefly Midland US, Southern US) The Devil."
      ],
      "synonyms": [
        {
          "word": "Old Nick"
        },
        {
          "word": "Old Serpent"
        },
        {
          "word": "Satan"
        }
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      ]
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  "word": "Old Scratch"
}