"del" meaning in Old French

{
  "forms": [
    {
      "form": "du",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "contraction"
      },
      "expansion": "del",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "contraction",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "+ le (of the)",
          "word": "de"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Old French entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 33 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "contraction of de + le (of the)"
      ],
      "id": "en-del-fro-contraction-d1p~fIAf",
      "links": [
        [
          "de",
          "de#Old_French"
        ],
        [
          "le",
          "le#Old_French"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "contraction"
      ]
    }
  ],
  "word": "del"
}

{
  "categories": [
    "Pages with 33 entries",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "du",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "contraction"
      },
      "expansion": "del",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "contraction",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "+ le (of the)",
          "word": "de"
        }
      ],
      "categories": [
        "Old French contractions",
        "Old French entries with incorrect language header",
        "Old French non-lemma forms",
        "Old French terms derived from Latin",
        "Old French terms derived from Old Latin",
        "Old French terms derived from Proto-Indo-European",
        "Old French terms derived from Proto-Italic",
        "Old French terms derived from the Proto-Indo-European root *h₂el- (other)",
        "Old French terms derived from the Proto-Indo-European word *de",
        "Old French terms derived from the Proto-Indo-European word *déh₁",
        "Old French terms inherited from Latin",
        "Old French terms inherited from Old Latin",
        "Old French terms inherited from Proto-Indo-European",
        "Old French terms inherited from Proto-Italic",
        "Pages with 33 entries",
        "Pages with entries"
      ],
      "glosses": [
        "contraction of de + le (of the)"
      ],
      "links": [
        [
          "de",
          "de#Old_French"
        ],
        [
          "le",
          "le#Old_French"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "contraction"
      ]
    }
  ],
  "word": "del"
}