"vau" meaning in Latin

{
  "etymology_templates": [
    {
      "args": {
        "1": "la",
        "2": ":bor",
        "3": "grc:*ϝαῦ",
        "text": "+",
        "title": "vau",
        "tree": "1"
      },
      "expansion": "Etymology tree\nAncient Greek *ϝαῦ (*waû)bor.\nLatin vau\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"*ϝαῦ\", \"status\" : \"missing\", \"lang\" : \"grc\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Latin\", \"term\" : \"vau\", \"status\" : \"ok\", \"lang\" : \"la\" }\" data-lang=\"la\" data-title=\"vau\">\nBorrowed from Ancient Greek *ϝαῦ (*waû).",
      "name": "ety"
    }
  ],
  "etymology_text": "Etymology tree\nAncient Greek *ϝαῦ (*waû)bor.\nLatin vau\nBorrowed from Ancient Greek *ϝαῦ (*waû).",
  "head_templates": [
    {
      "args": {
        "1": "vau",
        "g": "n",
        "indecl": "1"
      },
      "expansion": "vau n (indeclinable)",
      "name": "la-noun"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latin entries referencing missing etymons",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin entries with etymology texts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin entries with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using etymon with no ID",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 12 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "la",
          "name": "Greek letter names",
          "orig": "la:Greek letter names",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "wau; digamma (Ϝ)"
      ],
      "id": "en-vau-la-noun-J3ewINB3",
      "links": [
        [
          "wau",
          "wau"
        ],
        [
          "digamma",
          "digamma"
        ],
        [
          "Ϝ",
          "Ϝ#Ancient_Greek"
        ]
      ],
      "tags": [
        "indeclinable",
        "neuter"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈwau̯]",
      "tags": [
        "Classical-Latin"
      ]
    },
    {
      "ipa": "[ˈvaːu̯]",
      "note": "modern Italianate Ecclesiastical"
    }
  ],
  "word": "vau"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "la",
        "2": ":bor",
        "3": "grc:*ϝαῦ",
        "text": "+",
        "title": "vau",
        "tree": "1"
      },
      "expansion": "Etymology tree\nAncient Greek *ϝαῦ (*waû)bor.\nLatin vau\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"*ϝαῦ\", \"status\" : \"missing\", \"lang\" : \"grc\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Latin\", \"term\" : \"vau\", \"status\" : \"ok\", \"lang\" : \"la\" }\" data-lang=\"la\" data-title=\"vau\">\nBorrowed from Ancient Greek *ϝαῦ (*waû).",
      "name": "ety"
    }
  ],
  "etymology_text": "Etymology tree\nAncient Greek *ϝαῦ (*waû)bor.\nLatin vau\nBorrowed from Ancient Greek *ϝαῦ (*waû).",
  "head_templates": [
    {
      "args": {
        "1": "vau",
        "g": "n",
        "indecl": "1"
      },
      "expansion": "vau n (indeclinable)",
      "name": "la-noun"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Latin 1-syllable words",
        "Latin entries referencing missing etymons",
        "Latin entries with etymology texts",
        "Latin entries with etymology trees",
        "Latin entries with incorrect language header",
        "Latin indeclinable nouns",
        "Latin lemmas",
        "Latin neuter indeclinable nouns",
        "Latin neuter nouns",
        "Latin nouns",
        "Latin palindromes",
        "Latin terms borrowed from Ancient Greek",
        "Latin terms derived from Ancient Greek",
        "Latin terms with IPA pronunciation",
        "Pages using etymon with no ID",
        "Pages with 12 entries",
        "Pages with entries",
        "Pages with etymology trees",
        "la:Greek letter names"
      ],
      "glosses": [
        "wau; digamma (Ϝ)"
      ],
      "links": [
        [
          "wau",
          "wau"
        ],
        [
          "digamma",
          "digamma"
        ],
        [
          "Ϝ",
          "Ϝ#Ancient_Greek"
        ]
      ],
      "tags": [
        "indeclinable",
        "neuter"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈwau̯]",
      "tags": [
        "Classical-Latin"
      ]
    },
    {
      "ipa": "[ˈvaːu̯]",
      "note": "modern Italianate Ecclesiastical"
    }
  ],
  "word": "vau"
}