"Pyriphlegethon" meaning in Latin

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms propres en latin",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms propres en latin issus d’un mot en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Latin",
      "orig": "latin",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du grec ancien Πυριφλεγέθων, Pyriphlegéthōn."
  ],
  "forms": [
    {
      "form": "Pyriphlegethī",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "Pyriphlegethō",
      "tags": [
        "singular",
        "dative"
      ]
    },
    {
      "form": "Pyriphlegethō",
      "tags": [
        "singular",
        "ablative"
      ]
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en latin de la mythologie",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en latin",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Pyriphlégéthon."
      ],
      "id": "fr-Pyriphlegethon-la-name-~DFUL5Md",
      "topics": [
        "mythology"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Phlegethon"
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "Pyriphlegethon"
}

{
  "categories": [
    "Noms propres en latin",
    "Noms propres en latin issus d’un mot en grec ancien",
    "latin"
  ],
  "etymology_texts": [
    "Du grec ancien Πυριφλεγέθων, Pyriphlegéthōn."
  ],
  "forms": [
    {
      "form": "Pyriphlegethī",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "Pyriphlegethō",
      "tags": [
        "singular",
        "dative"
      ]
    },
    {
      "form": "Pyriphlegethō",
      "tags": [
        "singular",
        "ablative"
      ]
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        "Lexique en latin de la mythologie",
        "Wiktionnaire:Exemples manquants en latin"
      ],
      "glosses": [
        "Pyriphlégéthon."
      ],
      "topics": [
        "mythology"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Phlegethon"
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "Pyriphlegethon"
}