"Caspium" meaning in Latin

{
  "categories": [
    {
      "kind": "other",
      "name": "Calques en latin issus d’un mot en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Lemmes en latin",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mers en latin",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en latin",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Latin",
      "orig": "latin",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Calque du grec ancien Κάσπιον, Káspion θάλασσα, thálassa → voir Caspius."
  ],
  "forms": [
    {
      "form": "Caspiī",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "Caspiō",
      "tags": [
        "singular",
        "dative"
      ]
    },
    {
      "form": "Caspiō",
      "tags": [
        "singular",
        "ablative"
      ]
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en latin",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Mer Caspienne."
      ],
      "id": "fr-Caspium-la-noun-dzuvd6Yx"
    }
  ],
  "synonyms": [
    {
      "word": "Caspias"
    },
    {
      "word": "oceanus"
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "Caspium"
}

{
  "categories": [
    "Calques en latin issus d’un mot en grec ancien",
    "Lemmes en latin",
    "Mers en latin",
    "Noms communs en latin",
    "latin"
  ],
  "etymology_texts": [
    "Calque du grec ancien Κάσπιον, Káspion θάλασσα, thálassa → voir Caspius."
  ],
  "forms": [
    {
      "form": "Caspiī",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "Caspiō",
      "tags": [
        "singular",
        "dative"
      ]
    },
    {
      "form": "Caspiō",
      "tags": [
        "singular",
        "ablative"
      ]
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en latin"
      ],
      "glosses": [
        "Mer Caspienne."
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Caspias"
    },
    {
      "word": "oceanus"
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "Caspium"
}