"вєсны" meaning in Vieux slave

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vieux slave",
      "orig": "vieux slave",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "вєсна"
        }
      ],
      "glosses": [
        "Génitif singulier de вєсна."
      ],
      "id": "fr-вєсны-cu-noun-uYyl-7Ya"
    },
    {
      "form_of": [
        {
          "word": "вєсна"
        }
      ],
      "glosses": [
        "Nominatif pluriel de вєсна."
      ],
      "id": "fr-вєсны-cu-noun-mHO0TNYA"
    },
    {
      "form_of": [
        {
          "word": "вєсна"
        }
      ],
      "glosses": [
        "Accusatif pluriel de вєсна."
      ],
      "id": "fr-вєсны-cu-noun-5AXgCUi~"
    },
    {
      "form_of": [
        {
          "word": "вєсна"
        }
      ],
      "glosses": [
        "Vocatif pluriel de вєсна."
      ],
      "id": "fr-вєсны-cu-noun--Y-mE2dF"
    }
  ],
  "tags": [
    "feminine",
    "form-of"
  ],
  "word": "вєсны"
}

{
  "categories": [
    "Formes de noms communs en vieux slave",
    "vieux slave"
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "вєсна"
        }
      ],
      "glosses": [
        "Génitif singulier de вєсна."
      ]
    },
    {
      "form_of": [
        {
          "word": "вєсна"
        }
      ],
      "glosses": [
        "Nominatif pluriel de вєсна."
      ]
    },
    {
      "form_of": [
        {
          "word": "вєсна"
        }
      ],
      "glosses": [
        "Accusatif pluriel de вєсна."
      ]
    },
    {
      "form_of": [
        {
          "word": "вєсна"
        }
      ],
      "glosses": [
        "Vocatif pluriel de вєсна."
      ]
    }
  ],
  "tags": [
    "feminine",
    "form-of"
  ],
  "word": "вєсны"
}