"lucubrum" meaning in Latin

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en latin",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en latin",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Latin",
      "orig": "latin",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "translation": "travailler à la lumière de la lampe de nuit",
      "word": "lūcubro"
    }
  ],
  "etymology_texts": [
    "(VIIᵉ siècle) Selon Isidore de Séville, de luceo (« luire, éclairer ») et umbra (« ombre ») : « ce qui luit dans l’ombre » ; ou fait avec le suffixe -brum : « ce qui sert à éclairer ». Mot probablement forgé par Isidore pour expliquer son « dérivé », lucubro (« travailler de nuit »), voir ce mot pour d’autres hypothèses."
  ],
  "forms": [
    {
      "form": "lucubra",
      "tags": [
        "plural",
        "nominative"
      ]
    },
    {
      "form": "lucubra",
      "tags": [
        "plural",
        "vocative"
      ]
    },
    {
      "form": "lucubra",
      "tags": [
        "plural",
        "accusative"
      ]
    },
    {
      "form": "lucubrī",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "lucubrōrum",
      "tags": [
        "plural",
        "genitive"
      ]
    },
    {
      "form": "lucubrō",
      "tags": [
        "singular",
        "dative"
      ]
    },
    {
      "form": "lucubrīs",
      "tags": [
        "plural",
        "dative"
      ]
    },
    {
      "form": "lucubrō",
      "tags": [
        "singular",
        "ablative"
      ]
    },
    {
      "form": "lucubrīs",
      "tags": [
        "plural",
        "ablative"
      ]
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en latin",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en latin à traduire",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Hapax en latin",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Isid. Orig. 20, 10, 8",
          "text": "lūcŭbrum vocatum, quod luceat in umbra. Est enim modicus ignis, qui solet ex tenui stuppa ceraque formari."
        }
      ],
      "glosses": [
        "Lanterne, lampe, lumignon."
      ],
      "id": "fr-lucubrum-la-noun-WqRTfHLS",
      "raw_tags": [
        "Hapax"
      ]
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "lucubrum"
}

{
  "categories": [
    "Lemmes en latin",
    "Noms communs en latin",
    "latin"
  ],
  "derived": [
    {
      "translation": "travailler à la lumière de la lampe de nuit",
      "word": "lūcubro"
    }
  ],
  "etymology_texts": [
    "(VIIᵉ siècle) Selon Isidore de Séville, de luceo (« luire, éclairer ») et umbra (« ombre ») : « ce qui luit dans l’ombre » ; ou fait avec le suffixe -brum : « ce qui sert à éclairer ». Mot probablement forgé par Isidore pour expliquer son « dérivé », lucubro (« travailler de nuit »), voir ce mot pour d’autres hypothèses."
  ],
  "forms": [
    {
      "form": "lucubra",
      "tags": [
        "plural",
        "nominative"
      ]
    },
    {
      "form": "lucubra",
      "tags": [
        "plural",
        "vocative"
      ]
    },
    {
      "form": "lucubra",
      "tags": [
        "plural",
        "accusative"
      ]
    },
    {
      "form": "lucubrī",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "lucubrōrum",
      "tags": [
        "plural",
        "genitive"
      ]
    },
    {
      "form": "lucubrō",
      "tags": [
        "singular",
        "dative"
      ]
    },
    {
      "form": "lucubrīs",
      "tags": [
        "plural",
        "dative"
      ]
    },
    {
      "form": "lucubrō",
      "tags": [
        "singular",
        "ablative"
      ]
    },
    {
      "form": "lucubrīs",
      "tags": [
        "plural",
        "ablative"
      ]
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en latin",
        "Exemples en latin à traduire",
        "Hapax en latin"
      ],
      "examples": [
        {
          "ref": "Isid. Orig. 20, 10, 8",
          "text": "lūcŭbrum vocatum, quod luceat in umbra. Est enim modicus ignis, qui solet ex tenui stuppa ceraque formari."
        }
      ],
      "glosses": [
        "Lanterne, lampe, lumignon."
      ],
      "raw_tags": [
        "Hapax"
      ]
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "lucubrum"
}