"confirmateurs" meaning in Moyen français

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en moyen français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Moyen français",
      "orig": "moyen français",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "confirmateur",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Moyen français",
  "lang_code": "frm",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en moyen français",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "confirmateur"
        }
      ],
      "glosses": [
        "Pluriel de confirmateur."
      ],
      "id": "fr-confirmateurs-frm-noun-0XTMtI7T"
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "confirmateurs"
}

{
  "categories": [
    "Formes de noms communs en moyen français",
    "moyen français"
  ],
  "forms": [
    {
      "form": "confirmateur",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Moyen français",
  "lang_code": "frm",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en moyen français"
      ],
      "form_of": [
        {
          "word": "confirmateur"
        }
      ],
      "glosses": [
        "Pluriel de confirmateur."
      ]
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "confirmateurs"
}