"bien" meaning in Middle French

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fr",
            "2": "bien"
          },
          "expansion": "French: bien",
          "name": "desc"
        }
      ],
      "text": "French: bien"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "frm",
        "2": "fro",
        "3": "bien"
      },
      "expansion": "Old French bien",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old French bien.",
  "head_templates": [
    {
      "args": {
        "1": "frm",
        "2": "adverb"
      },
      "expansion": "bien",
      "name": "head"
    }
  ],
  "lang": "Middle French",
  "lang_code": "frm",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "well (in a positive way; in a way that meets or exceeds expectations)"
      ],
      "id": "en-bien-frm-adv-nai6SFxl",
      "links": [
        [
          "well",
          "well"
        ]
      ],
      "related": [
        {
          "word": "bienfaire"
        }
      ]
    }
  ],
  "word": "bien"
}

{
  "categories": [
    "West Frisian entries with incorrect language header",
    "West Frisian lemmas",
    "West Frisian neuter nouns",
    "West Frisian nouns",
    "West Frisian terms derived from Old Frisian",
    "West Frisian terms derived from Proto-Germanic",
    "West Frisian terms inherited from Old Frisian",
    "West Frisian terms inherited from Proto-Germanic",
    "West Frisian terms with IPA pronunciation"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fr",
            "2": "bien"
          },
          "expansion": "French: bien",
          "name": "desc"
        }
      ],
      "text": "French: bien"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "frm",
        "2": "fro",
        "3": "bien"
      },
      "expansion": "Old French bien",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old French bien.",
  "head_templates": [
    {
      "args": {
        "1": "frm",
        "2": "adverb"
      },
      "expansion": "bien",
      "name": "head"
    }
  ],
  "lang": "Middle French",
  "lang_code": "frm",
  "pos": "adv",
  "related": [
    {
      "word": "bienfaire"
    }
  ],
  "senses": [
    {
      "categories": [
        "Middle French adverbs",
        "Middle French entries with incorrect language header",
        "Middle French lemmas",
        "Middle French terms derived from Old French",
        "Middle French terms inherited from Old French"
      ],
      "glosses": [
        "well (in a positive way; in a way that meets or exceeds expectations)"
      ],
      "links": [
        [
          "well",
          "well"
        ]
      ]
    }
  ],
  "word": "bien"
}