"плєсна" meaning in Vieux slave

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vieux slave",
      "orig": "vieux slave",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Le mot est pour *pletsnā, de l’indo-européen commun *plē̆t-, plā̆t- (« plat, large ») qui donne aussi πλατύς, platús (« large & plat ») en grec, planta en latin.",
    "Voir плѧсати, plęsati (« danser »)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_id": "cu-nom-1",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "плєсно"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en vieux slave de l’anatomie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Plante du pied."
      ],
      "id": "fr-плєсна-cu-noun-K55ADOcu",
      "topics": [
        "anatomy"
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "плєсна"
}

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vieux slave",
      "orig": "vieux slave",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Le mot est pour *pletsnā, de l’indo-européen commun *plē̆t-, plā̆t- (« plat, large ») qui donne aussi πλατύς, platús (« large & plat ») en grec, planta en latin.",
    "Voir плѧсати, plęsati (« danser »)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_id": "cu-flex-nom-1",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "плєсно"
        }
      ],
      "glosses": [
        "Génitif singulier de плєсно."
      ],
      "id": "fr-плєсна-cu-noun-MWNp2gz8"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "плєсна"
}

{
  "categories": [
    "Formes de noms communs en vieux slave",
    "Noms communs en vieux slave",
    "vieux slave"
  ],
  "etymology_texts": [
    "Le mot est pour *pletsnā, de l’indo-européen commun *plē̆t-, plā̆t- (« plat, large ») qui donne aussi πλατύς, platús (« large & plat ») en grec, planta en latin.",
    "Voir плѧсати, plęsati (« danser »)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_id": "cu-nom-1",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "плєсно"
    }
  ],
  "senses": [
    {
      "categories": [
        "Lexique en vieux slave de l’anatomie"
      ],
      "glosses": [
        "Plante du pied."
      ],
      "topics": [
        "anatomy"
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "плєсна"
}

{
  "categories": [
    "Noms communs en vieux slave",
    "vieux slave"
  ],
  "etymology_texts": [
    "Le mot est pour *pletsnā, de l’indo-européen commun *plē̆t-, plā̆t- (« plat, large ») qui donne aussi πλατύς, platús (« large & plat ») en grec, planta en latin.",
    "Voir плѧсати, plęsati (« danser »)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_id": "cu-flex-nom-1",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "плєсно"
        }
      ],
      "glosses": [
        "Génitif singulier de плєсно."
      ]
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "плєсна"
}