"chou" meaning in Ancien français

{
  "categories": [
    {
      "kind": "other",
      "name": "Pronoms démonstratifs en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien français",
      "orig": "ancien français",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "pron",
  "pos_title": "Pronom démonstratif",
  "senses": [
    {
      "alt_of": [
        {
          "word": "ço"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en ancien français",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en ancien français à traduire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Vie de sainte Marie l’Égyptienne,ms. 23112 de la BnF, f. 337v. a.",
          "text": "Moult fu chou merveilleuse cose"
        }
      ],
      "glosses": [
        "Variante de ço."
      ],
      "id": "fr-chou-fro-pron--3Rnsc3R",
      "tags": [
        "alt-of"
      ]
    }
  ],
  "tags": [
    "demonstrative"
  ],
  "word": "chou"
}

{
  "categories": [
    "Pronoms démonstratifs en ancien français",
    "ancien français"
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "pron",
  "pos_title": "Pronom démonstratif",
  "senses": [
    {
      "alt_of": [
        {
          "word": "ço"
        }
      ],
      "categories": [
        "Exemples en ancien français",
        "Exemples en ancien français à traduire"
      ],
      "examples": [
        {
          "ref": "Vie de sainte Marie l’Égyptienne,ms. 23112 de la BnF, f. 337v. a.",
          "text": "Moult fu chou merveilleuse cose"
        }
      ],
      "glosses": [
        "Variante de ço."
      ],
      "tags": [
        "alt-of"
      ]
    }
  ],
  "tags": [
    "demonstrative"
  ],
  "word": "chou"
}