"exferra" meaning in Latin

{
  "descendants": [
    {
      "descendants": [
        {
          "lang": "Italian",
          "lang_code": "it",
          "word": "sferra"
        },
        {
          "lang": "Neapolitan",
          "lang_code": "nap",
          "word": "sferra"
        },
        {
          "lang": "Sicilian",
          "lang_code": "scn",
          "word": "sferra"
        }
      ],
      "lang": "Italo-Romance",
      "lang_code": "unknown"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "Proto-Romance"
      },
      "expansion": "(Proto-Romance)",
      "name": "q"
    },
    {
      "args": {
        "1": "la",
        "2": "ex-",
        "3": "ferrum",
        "4": "-ō",
        "alt3": "-āre",
        "id3": "denominal",
        "nocat": "1",
        "t2": "iron, (Proto-Romance) *horseshoe"
      },
      "expansion": "ex- + ferrum (“iron, (Proto-Romance) *horseshoe”) + -āre",
      "name": "af"
    }
  ],
  "etymology_text": "Deverbal of *exferrāre (“to unshoe (a horse)”), from ex- + ferrum (“iron, (Proto-Romance) *horseshoe”) + -āre.",
  "forms": [
    {
      "form": "exferrās",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "noun",
        "3": "plural",
        "4": "*exferrās",
        "g": "f"
      },
      "expansion": "*exferra f (plural *exferrās)",
      "name": "head"
    },
    {
      "args": {
        "1": "la",
        "2": "PItR"
      },
      "expansion": "(Proto-Italo-Romance)",
      "name": "tlb"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "original_title": "Reconstruction:Latin/exferra",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "71 29",
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "74 26",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "85 15",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "82 18",
          "kind": "other",
          "name": "Proto-Italo-Romance",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "exhausted horseshoe, the old horseshoe after it is removed from the hoof of a horse"
      ],
      "id": "en-exferra-la-noun-oAATXOOe",
      "links": [
        [
          "horseshoe",
          "horseshoe"
        ]
      ],
      "tags": [
        "feminine",
        "reconstruction"
      ]
    },
    {
      "glosses": [
        "an old rusty knife without handle"
      ],
      "id": "en-exferra-la-noun-lSVhY2Q0",
      "tags": [
        "feminine",
        "reconstruction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sˈfɛrra/"
    }
  ],
  "word": "exferra"
}

{
  "categories": [
    "Latin entries with incorrect language header",
    "Latin feminine nouns",
    "Latin lemmas",
    "Latin nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "Proto-Italo-Romance"
  ],
  "descendants": [
    {
      "descendants": [
        {
          "lang": "Italian",
          "lang_code": "it",
          "word": "sferra"
        },
        {
          "lang": "Neapolitan",
          "lang_code": "nap",
          "word": "sferra"
        },
        {
          "lang": "Sicilian",
          "lang_code": "scn",
          "word": "sferra"
        }
      ],
      "lang": "Italo-Romance",
      "lang_code": "unknown"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "Proto-Romance"
      },
      "expansion": "(Proto-Romance)",
      "name": "q"
    },
    {
      "args": {
        "1": "la",
        "2": "ex-",
        "3": "ferrum",
        "4": "-ō",
        "alt3": "-āre",
        "id3": "denominal",
        "nocat": "1",
        "t2": "iron, (Proto-Romance) *horseshoe"
      },
      "expansion": "ex- + ferrum (“iron, (Proto-Romance) *horseshoe”) + -āre",
      "name": "af"
    }
  ],
  "etymology_text": "Deverbal of *exferrāre (“to unshoe (a horse)”), from ex- + ferrum (“iron, (Proto-Romance) *horseshoe”) + -āre.",
  "forms": [
    {
      "form": "exferrās",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "noun",
        "3": "plural",
        "4": "*exferrās",
        "g": "f"
      },
      "expansion": "*exferra f (plural *exferrās)",
      "name": "head"
    },
    {
      "args": {
        "1": "la",
        "2": "PItR"
      },
      "expansion": "(Proto-Italo-Romance)",
      "name": "tlb"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "original_title": "Reconstruction:Latin/exferra",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "exhausted horseshoe, the old horseshoe after it is removed from the hoof of a horse"
      ],
      "links": [
        [
          "horseshoe",
          "horseshoe"
        ]
      ],
      "tags": [
        "feminine",
        "reconstruction"
      ]
    },
    {
      "glosses": [
        "an old rusty knife without handle"
      ],
      "tags": [
        "feminine",
        "reconstruction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sˈfɛrra/"
    }
  ],
  "word": "exferra"
}