"stag-evil" meaning in English

{
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      "expansion": "stag-evil (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "kind": "topical",
          "langcode": "en",
          "name": "Diseases",
          "orig": "en:Diseases",
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            "Disease",
            "Health",
            "Pathology",
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            "Human",
            "Biology",
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            "Fundamental"
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      "examples": [
        {
          "ref": "1802, Delabere Blaine, The Outlines of the Veterinary Art Or the Principles of Medicine",
          "text": "The disease called by the farriers stag evil is one of the most obstinate and fatal that takes place , and appears to arise from some cause operating on the nervous system",
          "type": "quotation"
        }
      ],
      "glosses": [
        "tetanus in the jaw of a horse"
      ],
      "id": "en-stag-evil-en-noun-vfkNREXP",
      "links": [
        [
          "tetanus",
          "tetanus"
        ],
        [
          "jaw",
          "jaw"
        ],
        [
          "horse",
          "horse"
        ]
      ],
      "raw_glosses": [
        "(obsolete) tetanus in the jaw of a horse"
      ],
      "tags": [
        "obsolete",
        "uncountable"
      ]
    }
  ],
  "word": "stag-evil"
}

{
  "head_templates": [
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      "expansion": "stag-evil (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with obsolete senses",
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        "en:Diseases"
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      "examples": [
        {
          "ref": "1802, Delabere Blaine, The Outlines of the Veterinary Art Or the Principles of Medicine",
          "text": "The disease called by the farriers stag evil is one of the most obstinate and fatal that takes place , and appears to arise from some cause operating on the nervous system",
          "type": "quotation"
        }
      ],
      "glosses": [
        "tetanus in the jaw of a horse"
      ],
      "links": [
        [
          "tetanus",
          "tetanus"
        ],
        [
          "jaw",
          "jaw"
        ],
        [
          "horse",
          "horse"
        ]
      ],
      "raw_glosses": [
        "(obsolete) tetanus in the jaw of a horse"
      ],
      "tags": [
        "obsolete",
        "uncountable"
      ]
    }
  ],
  "word": "stag-evil"
}