"palacious" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "palace",
        "3": "ious"
      },
      "expansion": "palace + -ious",
      "name": "suffix"
    }
  ],
  "etymology_text": "From palace + -ious.",
  "forms": [
    {
      "form": "more palacious",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most palacious",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "palacious (comparative more palacious, superlative most palacious)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "palatial"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -ious",
          "parents": [],
          "source": "w"
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          "parents": [],
          "source": "w"
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          "ref": "1662-1663, John Graunt, Natural and Political Observations Made Upon the Bills of Mortality:",
          "text": "great Palacious Houses",
          "type": "quote"
        }
      ],
      "glosses": [
        "Obsolete form of palatial."
      ],
      "id": "en-palacious-en-adj-VUuI5xD2",
      "links": [
        [
          "palatial",
          "palatial#English"
        ]
      ],
      "tags": [
        "alt-of",
        "obsolete"
      ]
    }
  ],
  "word": "palacious"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "palace",
        "3": "ious"
      },
      "expansion": "palace + -ious",
      "name": "suffix"
    }
  ],
  "etymology_text": "From palace + -ious.",
  "forms": [
    {
      "form": "more palacious",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most palacious",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "palacious (comparative more palacious, superlative most palacious)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "palatial"
        }
      ],
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        "English adjectives",
        "English entries with incorrect language header",
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        "English obsolete forms",
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        "Pages with entries"
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          "ref": "1662-1663, John Graunt, Natural and Political Observations Made Upon the Bills of Mortality:",
          "text": "great Palacious Houses",
          "type": "quote"
        }
      ],
      "glosses": [
        "Obsolete form of palatial."
      ],
      "links": [
        [
          "palatial",
          "palatial#English"
        ]
      ],
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        "obsolete"
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  ],
  "word": "palacious"
}