"della" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "di",
        "3": "la"
      },
      "expansion": "di + la",
      "name": "af"
    },
    {
      "args": {
        "1": "it",
        "2": "VL.",
        "3": "dē illa"
      },
      "expansion": "Vulgar Latin dē illa",
      "name": "inh"
    }
  ],
  "etymology_text": "From di + la, ultimately derived from Vulgar Latin dē illa.",
  "head_templates": [
    {
      "args": {
        "1": "it",
        "2": "contractions"
      },
      "expansion": "della",
      "name": "head"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "contraction",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "of the, from the",
          "word": "di la"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "contraction of di la; of the, from the"
      ],
      "id": "en-della-it-contraction-e--7m842",
      "links": [
        [
          "di",
          "di#Italian"
        ],
        [
          "la",
          "la#Italian"
        ],
        [
          "of",
          "of"
        ],
        [
          "the",
          "the"
        ],
        [
          "from",
          "from"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "contraction"
      ]
    }
  ],
  "word": "della"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "di",
        "3": "la"
      },
      "expansion": "di + la",
      "name": "af"
    },
    {
      "args": {
        "1": "it",
        "2": "VL.",
        "3": "dē illa"
      },
      "expansion": "Vulgar Latin dē illa",
      "name": "inh"
    }
  ],
  "etymology_text": "From di + la, ultimately derived from Vulgar Latin dē illa.",
  "head_templates": [
    {
      "args": {
        "1": "it",
        "2": "contractions"
      },
      "expansion": "della",
      "name": "head"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "contraction",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "of the, from the",
          "word": "di la"
        }
      ],
      "categories": [
        "Italian compound terms",
        "Italian contractions",
        "Italian entries with incorrect language header",
        "Italian non-lemma forms",
        "Italian terms derived from Vulgar Latin",
        "Italian terms inherited from Vulgar Latin"
      ],
      "glosses": [
        "contraction of di la; of the, from the"
      ],
      "links": [
        [
          "di",
          "di#Italian"
        ],
        [
          "la",
          "la#Italian"
        ],
        [
          "of",
          "of"
        ],
        [
          "the",
          "the"
        ],
        [
          "from",
          "from"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "contraction"
      ]
    }
  ],
  "word": "della"
}