"book-learned" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "bok-lerned"
      },
      "expansion": "Middle English bok-lerned",
      "name": "inh"
    },
    {
      "args": {
        "1": "enm",
        "2": "boke-lornut"
      },
      "expansion": "boke-lornut",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "book",
        "3": "learned"
      },
      "expansion": "book + learned",
      "name": "compound"
    }
  ],
  "etymology_text": "From Middle English bok-lerned, boke-lornut, equivalent to book + learned.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "book-learned (not comparable)",
      "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"
        }
      ],
      "derived": [
        {
          "word": "book-learnedness"
        },
        {
          "word": "book-learning"
        }
      ],
      "glosses": [
        "Versed in books; having knowledge derived from books."
      ],
      "id": "en-book-learned-en-adj-GnS2tMrO",
      "raw_glosses": [
        "(often disparagingly) Versed in books; having knowledge derived from books."
      ],
      "tags": [
        "derogatory",
        "not-comparable",
        "often"
      ]
    }
  ],
  "word": "book-learned"
}

{
  "derived": [
    {
      "word": "book-learnedness"
    },
    {
      "word": "book-learning"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "bok-lerned"
      },
      "expansion": "Middle English bok-lerned",
      "name": "inh"
    },
    {
      "args": {
        "1": "enm",
        "2": "boke-lornut"
      },
      "expansion": "boke-lornut",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "book",
        "3": "learned"
      },
      "expansion": "book + learned",
      "name": "compound"
    }
  ],
  "etymology_text": "From Middle English bok-lerned, boke-lornut, equivalent to book + learned.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "book-learned (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms derived from Middle English",
        "English terms inherited from Middle English",
        "English uncomparable adjectives"
      ],
      "glosses": [
        "Versed in books; having knowledge derived from books."
      ],
      "raw_glosses": [
        "(often disparagingly) Versed in books; having knowledge derived from books."
      ],
      "tags": [
        "derogatory",
        "not-comparable",
        "often"
      ]
    }
  ],
  "word": "book-learned"
}