"þusund" meaning in Old Swedish

{
  "forms": [
    {
      "form": "þūsund",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "gmq-osw",
        "2": "numeral",
        "head": "þūsund"
      },
      "expansion": "þūsund",
      "name": "head"
    }
  ],
  "lang": "Old Swedish",
  "lang_code": "gmq-osw",
  "pos": "num",
  "senses": [
    {
      "alt_of": [
        {
          "word": "þūsand"
        }
      ],
      "categories": [
        {
          "kind": "topical",
          "name": "Old Swedish cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Swedish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Swedish entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of þūsand"
      ],
      "id": "en-þusund-gmq-osw-num-X5PdnbuU",
      "links": [
        [
          "þūsand",
          "þusand#Old Swedish"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "þusund"
}

{
  "forms": [
    {
      "form": "þūsund",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "gmq-osw",
        "2": "numeral",
        "head": "þūsund"
      },
      "expansion": "þūsund",
      "name": "head"
    }
  ],
  "lang": "Old Swedish",
  "lang_code": "gmq-osw",
  "pos": "num",
  "senses": [
    {
      "alt_of": [
        {
          "word": "þūsand"
        }
      ],
      "categories": [
        "Old Swedish cardinal numbers",
        "Old Swedish entries with incorrect language header",
        "Old Swedish entries with language name categories using raw markup",
        "Old Swedish lemmas",
        "Old Swedish numerals"
      ],
      "glosses": [
        "Alternative form of þūsand"
      ],
      "links": [
        [
          "þūsand",
          "þusand#Old Swedish"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "þusund"
}