"julas" meaning in Swedish

{
  "etymology_templates": [
    {
      "args": {
        "1": "sv",
        "2": "jul",
        "3": "-as"
      },
      "expansion": "jul + -as",
      "name": "suffix"
    }
  ],
  "etymology_text": "From jul + -as.",
  "head_templates": [
    {
      "args": {
        "1": "sv",
        "2": "noun"
      },
      "expansion": "julas",
      "name": "head"
    }
  ],
  "lang": "Swedish",
  "lang_code": "sv",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Swedish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Swedish terms suffixed with -as",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "jul"
        }
      ],
      "glosses": [
        "adverbial genitive form of jul"
      ],
      "id": "en-julas-sv-noun-2z~eyhWq",
      "links": [
        [
          "jul",
          "jul#Swedish"
        ]
      ],
      "tags": [
        "adverbial",
        "form-of",
        "genitive"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/²jʉ̟ːlas/"
    },
    {
      "rhymes": "-²ʉːlas"
    }
  ],
  "word": "julas"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sv",
        "2": "jul",
        "3": "-as"
      },
      "expansion": "jul + -as",
      "name": "suffix"
    }
  ],
  "etymology_text": "From jul + -as.",
  "head_templates": [
    {
      "args": {
        "1": "sv",
        "2": "noun"
      },
      "expansion": "julas",
      "name": "head"
    }
  ],
  "lang": "Swedish",
  "lang_code": "sv",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Rhymes:Swedish/²ʉːlas",
        "Swedish entries with incorrect language header",
        "Swedish lemmas",
        "Swedish nouns",
        "Swedish terms suffixed with -as",
        "Swedish terms with IPA pronunciation"
      ],
      "form_of": [
        {
          "word": "jul"
        }
      ],
      "glosses": [
        "adverbial genitive form of jul"
      ],
      "links": [
        [
          "jul",
          "jul#Swedish"
        ]
      ],
      "tags": [
        "adverbial",
        "form-of",
        "genitive"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/²jʉ̟ːlas/"
    },
    {
      "rhymes": "-²ʉːlas"
    }
  ],
  "word": "julas"
}