"sub-fusc" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "subfuscus",
        "4": "",
        "5": "dark brown"
      },
      "expansion": "Latin subfuscus (“dark brown”)",
      "name": "uder"
    }
  ],
  "etymology_text": "Latin subfuscus (“dark brown”).",
  "forms": [
    {
      "form": "sub-fuscs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "sub-fusc (countable and uncountable, plural sub-fuscs)",
      "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",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Oxford University English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "subfusc"
        }
      ],
      "glosses": [
        "Rare form of subfusc."
      ],
      "id": "en-sub-fusc-en-noun-el7-5P8p",
      "links": [
        [
          "subfusc",
          "subfusc#English"
        ]
      ],
      "qualifier": "Oxford University",
      "raw_glosses": [
        "(Oxford University) Rare form of subfusc."
      ],
      "tags": [
        "countable",
        "form-of",
        "rare",
        "uncountable"
      ]
    }
  ],
  "word": "sub-fusc"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "subfuscus",
        "4": "",
        "5": "dark brown"
      },
      "expansion": "Latin subfuscus (“dark brown”)",
      "name": "uder"
    }
  ],
  "etymology_text": "Latin subfuscus (“dark brown”).",
  "forms": [
    {
      "form": "sub-fuscs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "sub-fusc (countable and uncountable, plural sub-fuscs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English rare forms",
        "English terms derived from Latin",
        "English uncountable nouns",
        "English undefined derivations",
        "Oxford University English",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "form_of": [
        {
          "word": "subfusc"
        }
      ],
      "glosses": [
        "Rare form of subfusc."
      ],
      "links": [
        [
          "subfusc",
          "subfusc#English"
        ]
      ],
      "qualifier": "Oxford University",
      "raw_glosses": [
        "(Oxford University) Rare form of subfusc."
      ],
      "tags": [
        "countable",
        "form-of",
        "rare",
        "uncountable"
      ]
    }
  ],
  "word": "sub-fusc"
}