"cuers" meaning in Ancien français

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien français",
      "orig": "ancien français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "→ voir cuer"
  ],
  "forms": [
    {
      "form": "cuer",
      "raw_tags": [
        "Cas sujet"
      ],
      "tags": [
        "plural"
      ]
    },
    {
      "form": "cuer",
      "raw_tags": [
        "Cas régime"
      ],
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "cuer"
        }
      ],
      "glosses": [
        "Pluriel du cas régime de cuer."
      ],
      "id": "fr-cuers-fro-noun-o8vi4Nqg"
    },
    {
      "form_of": [
        {
          "word": "cuer"
        }
      ],
      "glosses": [
        "Singulier du cas sujet de cuer."
      ],
      "id": "fr-cuers-fro-noun-DKzCb3Jc"
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "cuers"
}

{
  "categories": [
    "Formes de noms communs en ancien français",
    "ancien français"
  ],
  "etymology_texts": [
    "→ voir cuer"
  ],
  "forms": [
    {
      "form": "cuer",
      "raw_tags": [
        "Cas sujet"
      ],
      "tags": [
        "plural"
      ]
    },
    {
      "form": "cuer",
      "raw_tags": [
        "Cas régime"
      ],
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "cuer"
        }
      ],
      "glosses": [
        "Pluriel du cas régime de cuer."
      ]
    },
    {
      "form_of": [
        {
          "word": "cuer"
        }
      ],
      "glosses": [
        "Singulier du cas sujet de cuer."
      ]
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "cuers"
}