"vastily" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "vasty",
        "3": "ly"
      },
      "expansion": "vasty + -ly",
      "name": "suffix"
    }
  ],
  "etymology_text": "From vasty + -ly.",
  "forms": [
    {
      "form": "more vastily",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most vastily",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vastily (comparative more vastily, superlative most vastily)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "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 terms suffixed with -ly",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "In a vasty manner."
      ],
      "id": "en-vastily-en-adv-qteElfhV",
      "links": [
        [
          "vasty",
          "vasty"
        ]
      ],
      "raw_glosses": [
        "(archaic, literary) In a vasty manner."
      ],
      "tags": [
        "archaic",
        "literary"
      ]
    }
  ],
  "word": "vastily"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "vasty",
        "3": "ly"
      },
      "expansion": "vasty + -ly",
      "name": "suffix"
    }
  ],
  "etymology_text": "From vasty + -ly.",
  "forms": [
    {
      "form": "more vastily",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most vastily",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vastily (comparative more vastily, superlative most vastily)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "English adverbs",
        "English entries with incorrect language header",
        "English lemmas",
        "English literary terms",
        "English terms suffixed with -ly",
        "English terms with archaic senses",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "In a vasty manner."
      ],
      "links": [
        [
          "vasty",
          "vasty"
        ]
      ],
      "raw_glosses": [
        "(archaic, literary) In a vasty manner."
      ],
      "tags": [
        "archaic",
        "literary"
      ]
    }
  ],
  "word": "vastily"
}