"adv." meaning in Latin

{
  "head_templates": [
    {
      "args": {
        "1": "accusative"
      },
      "expansion": "adv. (+ accusative)",
      "name": "la-prep"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "prep",
  "senses": [
    {
      "alt_of": [
        {
          "word": "adversus"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Latin accusative prepositions",
          "parents": [
            "Accusative prepositions",
            "Prepositions",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin prepositions",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Tert. adv. Valent. [Tertulliānus adversus Valentīniānōs]",
          "text": "Tertullian against the Valentinians",
          "type": "example"
        }
      ],
      "glosses": [
        "Abbreviation of adversus."
      ],
      "id": "en-adv.-la-prep-Y~jY1lCf",
      "links": [
        [
          "adversus",
          "adversus#Latin"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "with-accusative"
      ]
    }
  ],
  "word": "adv."
}

{
  "head_templates": [
    {
      "args": {
        "1": "accusative"
      },
      "expansion": "adv. (+ accusative)",
      "name": "la-prep"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "prep",
  "senses": [
    {
      "alt_of": [
        {
          "word": "adversus"
        }
      ],
      "categories": [
        "Latin abbreviations",
        "Latin accusative prepositions",
        "Latin entries with incorrect language header",
        "Latin lemmas",
        "Latin prepositions",
        "Latin terms spelled with .",
        "Latin terms with usage examples"
      ],
      "examples": [
        {
          "ref": "Tert. adv. Valent. [Tertulliānus adversus Valentīniānōs]",
          "text": "Tertullian against the Valentinians",
          "type": "example"
        }
      ],
      "glosses": [
        "Abbreviation of adversus."
      ],
      "links": [
        [
          "adversus",
          "adversus#Latin"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "with-accusative"
      ]
    }
  ],
  "word": "adv."
}