"overgrievous" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "ovyr-grevous"
      },
      "expansion": "Middle English ovyr-grevous",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "over",
        "3": "grievous"
      },
      "expansion": "over- + grievous",
      "name": "prefix"
    }
  ],
  "etymology_text": "From Middle English ovyr-grevous; equivalent to over- + grievous.",
  "forms": [
    {
      "form": "more overgrievous",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most overgrievous",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "overgrievous (comparative more overgrievous, superlative most overgrievous)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "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 prefixed with over-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Excessively grievous."
      ],
      "id": "en-overgrievous-en-adj-HgJWTDF0"
    }
  ],
  "word": "overgrievous"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "ovyr-grevous"
      },
      "expansion": "Middle English ovyr-grevous",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "over",
        "3": "grievous"
      },
      "expansion": "over- + grievous",
      "name": "prefix"
    }
  ],
  "etymology_text": "From Middle English ovyr-grevous; equivalent to over- + grievous.",
  "forms": [
    {
      "form": "more overgrievous",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most overgrievous",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "overgrievous (comparative more overgrievous, superlative most overgrievous)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms derived from Middle English",
        "English terms inherited from Middle English",
        "English terms prefixed with over-"
      ],
      "glosses": [
        "Excessively grievous."
      ]
    }
  ],
  "word": "overgrievous"
}