"prologus" meaning in Latin

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fro",
            "2": "prologue"
          },
          "expansion": "Old French: prologue",
          "name": "desc"
        }
      ],
      "text": "Old French: prologue"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "la",
        "2": "grc",
        "3": "πρόλογος"
      },
      "expansion": "Ancient Greek πρόλογος (prólogos)",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Ancient Greek πρόλογος (prólogos).",
  "forms": [
    {
      "form": "prōlogus",
      "tags": [
        "canonical",
        "masculine"
      ]
    },
    {
      "form": "prōlogī",
      "tags": [
        "genitive"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "declension",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "la-ndecl",
      "source": "declension",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "prōlogus",
      "source": "declension",
      "tags": [
        "nominative",
        "singular"
      ]
    },
    {
      "form": "prōlogī",
      "source": "declension",
      "tags": [
        "nominative",
        "plural"
      ]
    },
    {
      "form": "prōlogī",
      "source": "declension",
      "tags": [
        "genitive",
        "singular"
      ]
    },
    {
      "form": "prōlogōrum",
      "source": "declension",
      "tags": [
        "genitive",
        "plural"
      ]
    },
    {
      "form": "prōlogō",
      "source": "declension",
      "tags": [
        "dative",
        "singular"
      ]
    },
    {
      "form": "prōlogīs",
      "source": "declension",
      "tags": [
        "dative",
        "plural"
      ]
    },
    {
      "form": "prōlogum",
      "source": "declension",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "prōlogōs",
      "source": "declension",
      "tags": [
        "accusative",
        "plural"
      ]
    },
    {
      "form": "prōlogō",
      "source": "declension",
      "tags": [
        "ablative",
        "singular"
      ]
    },
    {
      "form": "prōlogīs",
      "source": "declension",
      "tags": [
        "ablative",
        "plural"
      ]
    },
    {
      "form": "prōloge",
      "source": "declension",
      "tags": [
        "singular",
        "vocative"
      ]
    },
    {
      "form": "prōlogī",
      "source": "declension",
      "tags": [
        "plural",
        "vocative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "prōlogus<2>"
      },
      "expansion": "prōlogus m (genitive prōlogī); second declension",
      "name": "la-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "prōlogus<2>"
      },
      "name": "la-ndecl"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "47 53",
          "kind": "other",
          "name": "Latin masculine nouns in the second declension",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "a preface to a play; a prologue"
      ],
      "id": "en-prologus-la-noun-14SFd7tH",
      "links": [
        [
          "preface",
          "preface"
        ],
        [
          "play",
          "play"
        ],
        [
          "prologue",
          "prologue"
        ]
      ],
      "tags": [
        "declension-2"
      ]
    },
    {
      "categories": [
        {
          "_dis": "21 79",
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "47 53",
          "kind": "other",
          "name": "Latin masculine nouns in the second declension",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "10 90",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "one who recites a prologue"
      ],
      "id": "en-prologus-la-noun-KepErwDm",
      "links": [
        [
          "recites",
          "recite"
        ]
      ],
      "tags": [
        "declension-2"
      ]
    }
  ],
  "word": "prologus"
}

{
  "categories": [
    "Latin entries with incorrect language header",
    "Latin lemmas",
    "Latin masculine nouns",
    "Latin masculine nouns in the second declension",
    "Latin nouns",
    "Latin second declension nouns",
    "Latin terms borrowed from Ancient Greek",
    "Latin terms derived from Ancient Greek",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fro",
            "2": "prologue"
          },
          "expansion": "Old French: prologue",
          "name": "desc"
        }
      ],
      "text": "Old French: prologue"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "la",
        "2": "grc",
        "3": "πρόλογος"
      },
      "expansion": "Ancient Greek πρόλογος (prólogos)",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Ancient Greek πρόλογος (prólogos).",
  "forms": [
    {
      "form": "prōlogus",
      "tags": [
        "canonical",
        "masculine"
      ]
    },
    {
      "form": "prōlogī",
      "tags": [
        "genitive"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "declension",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "la-ndecl",
      "source": "declension",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "prōlogus",
      "source": "declension",
      "tags": [
        "nominative",
        "singular"
      ]
    },
    {
      "form": "prōlogī",
      "source": "declension",
      "tags": [
        "nominative",
        "plural"
      ]
    },
    {
      "form": "prōlogī",
      "source": "declension",
      "tags": [
        "genitive",
        "singular"
      ]
    },
    {
      "form": "prōlogōrum",
      "source": "declension",
      "tags": [
        "genitive",
        "plural"
      ]
    },
    {
      "form": "prōlogō",
      "source": "declension",
      "tags": [
        "dative",
        "singular"
      ]
    },
    {
      "form": "prōlogīs",
      "source": "declension",
      "tags": [
        "dative",
        "plural"
      ]
    },
    {
      "form": "prōlogum",
      "source": "declension",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "prōlogōs",
      "source": "declension",
      "tags": [
        "accusative",
        "plural"
      ]
    },
    {
      "form": "prōlogō",
      "source": "declension",
      "tags": [
        "ablative",
        "singular"
      ]
    },
    {
      "form": "prōlogīs",
      "source": "declension",
      "tags": [
        "ablative",
        "plural"
      ]
    },
    {
      "form": "prōloge",
      "source": "declension",
      "tags": [
        "singular",
        "vocative"
      ]
    },
    {
      "form": "prōlogī",
      "source": "declension",
      "tags": [
        "plural",
        "vocative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "prōlogus<2>"
      },
      "expansion": "prōlogus m (genitive prōlogī); second declension",
      "name": "la-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "prōlogus<2>"
      },
      "name": "la-ndecl"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "a preface to a play; a prologue"
      ],
      "links": [
        [
          "preface",
          "preface"
        ],
        [
          "play",
          "play"
        ],
        [
          "prologue",
          "prologue"
        ]
      ],
      "tags": [
        "declension-2"
      ]
    },
    {
      "glosses": [
        "one who recites a prologue"
      ],
      "links": [
        [
          "recites",
          "recite"
        ]
      ],
      "tags": [
        "declension-2"
      ]
    }
  ],
  "word": "prologus"
}