"вьсєноштьнъ" meaning in Vieux slave

{
  "categories": [
    {
      "kind": "other",
      "name": "Adverbes en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Compositions en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vieux slave",
      "orig": "vieux slave",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Motcomposé de вьсь, vǐsǐ (« tout »), ношть, noštĭ (« nuit ») et -ьнъ, -ĭnŭ."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "adv",
  "pos_title": "Adverbe",
  "senses": [
    {
      "glosses": [
        "Qui dure toute le nuit."
      ],
      "id": "fr-вьсєноштьнъ-cu-adv-9nxmFyXS"
    }
  ],
  "word": "вьсєноштьнъ"
}

{
  "categories": [
    "Adverbes en vieux slave",
    "Compositions en vieux slave",
    "vieux slave"
  ],
  "etymology_texts": [
    "Motcomposé de вьсь, vǐsǐ (« tout »), ношть, noštĭ (« nuit ») et -ьнъ, -ĭnŭ."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "adv",
  "pos_title": "Adverbe",
  "senses": [
    {
      "glosses": [
        "Qui dure toute le nuit."
      ]
    }
  ],
  "word": "вьсєноштьнъ"
}