"срьдьцє" meaning in Vieux slave

{
  "categories": [
    {
      "kind": "other",
      "name": "Dérivations en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en vieux slave suffixés avec -ьцє",
      "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"
    }
  ],
  "derived": [
    {
      "lang": "Biélorusse",
      "lang_code": "be",
      "word": "сэрца"
    },
    {
      "lang": "Bulgare",
      "lang_code": "bg",
      "word": "сърце"
    },
    {
      "lang": "Macédonien",
      "lang_code": "mk",
      "word": "срце"
    },
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "serce"
    },
    {
      "lang": "Russe",
      "lang_code": "ru",
      "word": "сердце"
    },
    {
      "lang": "Slovaque",
      "lang_code": "sk",
      "word": "srdce"
    },
    {
      "lang": "Slovène",
      "lang_code": "sl",
      "word": "srce"
    },
    {
      "lang": "Tchèque",
      "lang_code": "cs",
      "word": "srdce"
    },
    {
      "lang": "Ukrainien",
      "lang_code": "uk",
      "word": "серце"
    }
  ],
  "etymology_texts": [
    "Dérivé de срѣда, srěda (« cœur, centre »), avec le suffixe -ьцє, -ĭce."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "srĭdĭce"
  ],
  "related": [
    {
      "raw_tags": [
        "Glagolitique"
      ],
      "word": "ⱄⱃⱐⰴⱐⱌⰵ"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en vieux slave de l’anatomie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Cœur."
      ],
      "id": "fr-срьдьцє-cu-noun-79kBwZs~",
      "topics": [
        "anatomy"
      ]
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "срьдьцє"
}

{
  "categories": [
    "Dérivations en vieux slave",
    "Mots en vieux slave suffixés avec -ьцє",
    "Noms communs en vieux slave",
    "vieux slave"
  ],
  "derived": [
    {
      "lang": "Biélorusse",
      "lang_code": "be",
      "word": "сэрца"
    },
    {
      "lang": "Bulgare",
      "lang_code": "bg",
      "word": "сърце"
    },
    {
      "lang": "Macédonien",
      "lang_code": "mk",
      "word": "срце"
    },
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "serce"
    },
    {
      "lang": "Russe",
      "lang_code": "ru",
      "word": "сердце"
    },
    {
      "lang": "Slovaque",
      "lang_code": "sk",
      "word": "srdce"
    },
    {
      "lang": "Slovène",
      "lang_code": "sl",
      "word": "srce"
    },
    {
      "lang": "Tchèque",
      "lang_code": "cs",
      "word": "srdce"
    },
    {
      "lang": "Ukrainien",
      "lang_code": "uk",
      "word": "серце"
    }
  ],
  "etymology_texts": [
    "Dérivé de срѣда, srěda (« cœur, centre »), avec le suffixe -ьцє, -ĭce."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "srĭdĭce"
  ],
  "related": [
    {
      "raw_tags": [
        "Glagolitique"
      ],
      "word": "ⱄⱃⱐⰴⱐⱌⰵ"
    }
  ],
  "senses": [
    {
      "categories": [
        "Lexique en vieux slave de l’anatomie"
      ],
      "glosses": [
        "Cœur."
      ],
      "topics": [
        "anatomy"
      ]
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "срьдьцє"
}