"мьша" meaning in Vieux slave

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en vieux slave issus d’un mot en latin",
      "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": "імша"
    },
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "msza"
    },
    {
      "lang": "Croate",
      "lang_code": "hr",
      "word": "misa"
    },
    {
      "lang": "Slovaque",
      "lang_code": "sk",
      "word": "omša"
    },
    {
      "lang": "Slovène",
      "lang_code": "sl",
      "word": "maša"
    },
    {
      "lang": "Tchèque",
      "lang_code": "cs",
      "word": "mše"
    },
    {
      "lang": "Ukrainien",
      "lang_code": "uk",
      "word": "меса"
    }
  ],
  "etymology_texts": [
    "Du latin missa, mot adopté par les Slaves d'obédience catholique. Le russe a обедня (« communion, repas pris en commun » → voir oběd), le bulgare a, sur une base grecque ou slave литургия, богослужение (« liturgie, service divin » → voir bohoslužba). L’ukrainien et le biélorusse distinguent la меса/імша catholique (ou uniate) du service divin orthodoxe (богаслужэнне)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en vieux slave de la religion",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Messe."
      ],
      "id": "fr-мьша-cu-noun-scK-TyDR",
      "topics": [
        "religion"
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "мьша"
}

{
  "categories": [
    "Mots en vieux slave issus d’un mot en latin",
    "Noms communs en vieux slave",
    "vieux slave"
  ],
  "derived": [
    {
      "lang": "Biélorusse",
      "lang_code": "be",
      "word": "імша"
    },
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "msza"
    },
    {
      "lang": "Croate",
      "lang_code": "hr",
      "word": "misa"
    },
    {
      "lang": "Slovaque",
      "lang_code": "sk",
      "word": "omša"
    },
    {
      "lang": "Slovène",
      "lang_code": "sl",
      "word": "maša"
    },
    {
      "lang": "Tchèque",
      "lang_code": "cs",
      "word": "mše"
    },
    {
      "lang": "Ukrainien",
      "lang_code": "uk",
      "word": "меса"
    }
  ],
  "etymology_texts": [
    "Du latin missa, mot adopté par les Slaves d'obédience catholique. Le russe a обедня (« communion, repas pris en commun » → voir oběd), le bulgare a, sur une base grecque ou slave литургия, богослужение (« liturgie, service divin » → voir bohoslužba). L’ukrainien et le biélorusse distinguent la меса/імша catholique (ou uniate) du service divin orthodoxe (богаслужэнне)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en vieux slave de la religion"
      ],
      "glosses": [
        "Messe."
      ],
      "topics": [
        "religion"
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "мьша"
}