"fermeté" meaning in Ancien français

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien français",
      "orig": "ancien français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du latin firmitatem, accusatif singulier de firmitas."
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "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": "Hervis de Metz, édition deE. Stengel, p. 142, 1200-25",
          "text": "Bours et villes castiax et fermetés"
        }
      ],
      "glosses": [
        "Fortification, forteresse."
      ],
      "id": "fr-fermeté-fro-noun-Bsi-Q9E3",
      "raw_tags": [
        "XIIᵉ siècle à XV"
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "fermeté"
}

{
  "categories": [
    "Noms communs en ancien français",
    "ancien français"
  ],
  "etymology_texts": [
    "Du latin firmitatem, accusatif singulier de firmitas."
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en ancien français",
        "Exemples en ancien français à traduire"
      ],
      "examples": [
        {
          "ref": "Hervis de Metz, édition deE. Stengel, p. 142, 1200-25",
          "text": "Bours et villes castiax et fermetés"
        }
      ],
      "glosses": [
        "Fortification, forteresse."
      ],
      "raw_tags": [
        "XIIᵉ siècle à XV"
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "fermeté"
}