"Old Nick" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "Nick"
      },
      "expansion": "Nick",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "nicker"
      },
      "expansion": "nicker",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "ang",
        "3": "nicor",
        "4": "",
        "5": "water demon"
      },
      "expansion": "Old English nicor (“water demon”)",
      "name": "inh"
    }
  ],
  "etymology_text": "Originally 17th century. Apparently a special use of the forename Nick, perhaps in jocular or contrastive reference to Saint Nicholas. Alternatively, it may be derived from nicker, or some other derivative of Old English nicor (“water demon”).",
  "head_templates": [
    {
      "args": {
        "head": "Old Nick"
      },
      "expansion": "Old Nick",
      "name": "en-proper-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Theology",
          "orig": "en:Theology",
          "parents": [
            "Philosophy",
            "Religion",
            "All topics",
            "Culture",
            "Fundamental",
            "Society"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1886, Peter Christen Asbjørnsen, translated by H.L. Brækstad, Folk and Fairy Tales, page 158",
          "text": "He sat down in the middle of the floor, took his chalk out and marked a large ring around him, and round about this he wrote the Lord's Prayer, and then he did not feel afraid even if Old Nick himself should come.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The Devil; Satan."
      ],
      "id": "en-Old_Nick-en-name-6Gq3quCu",
      "links": [
        [
          "Devil",
          "Devil"
        ],
        [
          "Satan",
          "Satan"
        ]
      ],
      "synonyms": [
        {
          "word": "Old Scratch"
        },
        {
          "word": "Old Serpent"
        },
        {
          "word": "Satan"
        }
      ]
    }
  ],
  "word": "Old Nick"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "Nick"
      },
      "expansion": "Nick",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "nicker"
      },
      "expansion": "nicker",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "ang",
        "3": "nicor",
        "4": "",
        "5": "water demon"
      },
      "expansion": "Old English nicor (“water demon”)",
      "name": "inh"
    }
  ],
  "etymology_text": "Originally 17th century. Apparently a special use of the forename Nick, perhaps in jocular or contrastive reference to Saint Nicholas. Alternatively, it may be derived from nicker, or some other derivative of Old English nicor (“water demon”).",
  "head_templates": [
    {
      "args": {
        "head": "Old Nick"
      },
      "expansion": "Old Nick",
      "name": "en-proper-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms derived from Old English",
        "English terms inherited from Old English",
        "English terms with quotations",
        "English uncountable nouns",
        "en:Theology"
      ],
      "examples": [
        {
          "ref": "1886, Peter Christen Asbjørnsen, translated by H.L. Brækstad, Folk and Fairy Tales, page 158",
          "text": "He sat down in the middle of the floor, took his chalk out and marked a large ring around him, and round about this he wrote the Lord's Prayer, and then he did not feel afraid even if Old Nick himself should come.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The Devil; Satan."
      ],
      "links": [
        [
          "Devil",
          "Devil"
        ],
        [
          "Satan",
          "Satan"
        ]
      ],
      "synonyms": [
        {
          "word": "Old Scratch"
        },
        {
          "word": "Old Serpent"
        },
        {
          "word": "Satan"
        }
      ]
    }
  ],
  "word": "Old Nick"
}