"incognitum" meaning in English

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  "etymology_text": "Borrowed from Latin incognitum (“unknown”). Coined by William Hunter.",
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      "form": "incognita",
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        "plural"
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      "expansion": "incognitum (plural incognita)",
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  "lang_code": "en",
  "pos": "noun",
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          "text": "When, as president, he dispatched Meriwether Lewis and William Clark to the Northwest, Jefferson hoped that they would come upon live incognita roaming its forests.",
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      "glosses": [
        "An American mammoth or mastodon, especially when presumed extant."
      ],
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        "(archaic) An American mammoth or mastodon, especially when presumed extant."
      ],
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  "word": "incognitum"
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  "etymology_text": "Borrowed from Latin incognitum (“unknown”). Coined by William Hunter.",
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      ],
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