"black draught" meaning in English

{
  "forms": [
    {
      "form": "black draughts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "black draught (plural black draughts)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Medicine",
          "orig": "en:Medicine",
          "parents": [
            "Biology",
            "Healthcare",
            "Sciences",
            "Health",
            "All topics",
            "Body",
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          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1850, Charles Dickens, chapter 7, in David Copperfield:",
          "text": "He was taken ill in the night—quite prostrate he was—in consequence of Crab; and after being drugged with black draughts and blue pills, to an extent which Demple (whose father was a doctor) said was enough to undermine a horse's constitution, received a caning and six chapters of Greek Testament for refusing to confess.",
          "type": "quote"
        },
        {
          "ref": "1871, George Eliot, chapter 16, in Middlemarch:",
          "text": "\"You medical gentlemen must consult which sort of black draught you will prescribe, eh, Mr. Lydgate?\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "A cathartic medicine composed of senna and magnesia."
      ],
      "id": "en-black_draught-en-noun-S~0ewnjU",
      "links": [
        [
          "cathartic",
          "cathartic"
        ],
        [
          "medicine",
          "medicine"
        ],
        [
          "senna",
          "senna"
        ],
        [
          "magnesia",
          "magnesia"
        ]
      ],
      "raw_glosses": [
        "(historical or archaic) A cathartic medicine composed of senna and magnesia."
      ],
      "tags": [
        "archaic",
        "historical"
      ]
    }
  ],
  "word": "black draught"
}

{
  "forms": [
    {
      "form": "black draughts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "black draught (plural black draughts)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
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        "English multiword terms",
        "English nouns",
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        "English terms with quotations",
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        "Pages with entries",
        "Quotation templates to be cleaned",
        "en:Medicine"
      ],
      "examples": [
        {
          "ref": "1850, Charles Dickens, chapter 7, in David Copperfield:",
          "text": "He was taken ill in the night—quite prostrate he was—in consequence of Crab; and after being drugged with black draughts and blue pills, to an extent which Demple (whose father was a doctor) said was enough to undermine a horse's constitution, received a caning and six chapters of Greek Testament for refusing to confess.",
          "type": "quote"
        },
        {
          "ref": "1871, George Eliot, chapter 16, in Middlemarch:",
          "text": "\"You medical gentlemen must consult which sort of black draught you will prescribe, eh, Mr. Lydgate?\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "A cathartic medicine composed of senna and magnesia."
      ],
      "links": [
        [
          "cathartic",
          "cathartic"
        ],
        [
          "medicine",
          "medicine"
        ],
        [
          "senna",
          "senna"
        ],
        [
          "magnesia",
          "magnesia"
        ]
      ],
      "raw_glosses": [
        "(historical or archaic) A cathartic medicine composed of senna and magnesia."
      ],
      "tags": [
        "archaic",
        "historical"
      ]
    }
  ],
  "word": "black draught"
}