"ferremens" meaning in Français

{
  "anagrams": [
    {
      "word": "renfermes"
    },
    {
      "word": "renfermés"
    },
    {
      "word": "s’enfermer"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "→ voir ferrement."
  ],
  "forms": [
    {
      "form": "ferrement",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Français moderne d’avant 1835",
          "orig": "français moderne d’avant 1835",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "ferrement"
        }
      ],
      "glosses": [
        "Pluriel de ferrement."
      ],
      "id": "fr-ferremens-fr-noun-XoVr0dNH",
      "raw_tags": [
        "Archaïque",
        "orthographe d’avant 1835"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\fɛʁ.mɑ̃\\"
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "ferremens"
}

{
  "anagrams": [
    {
      "word": "renfermes"
    },
    {
      "word": "renfermés"
    },
    {
      "word": "s’enfermer"
    }
  ],
  "categories": [
    "Formes de noms communs en français",
    "français"
  ],
  "etymology_texts": [
    "→ voir ferrement."
  ],
  "forms": [
    {
      "form": "ferrement",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        "français moderne d’avant 1835"
      ],
      "form_of": [
        {
          "word": "ferrement"
        }
      ],
      "glosses": [
        "Pluriel de ferrement."
      ],
      "raw_tags": [
        "Archaïque",
        "orthographe d’avant 1835"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\fɛʁ.mɑ̃\\"
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "ferremens"
}