"þrettán" meaning in Icelandic

{
  "etymology_templates": [
    {
      "args": {
        "1": "is",
        "2": "non",
        "3": "þrettán"
      },
      "expansion": "Old Norse þrettán",
      "name": "inh"
    },
    {
      "args": {
        "1": "is",
        "2": "gem-pro",
        "3": "*þritehun"
      },
      "expansion": "Proto-Germanic *þritehun",
      "name": "der"
    }
  ],
  "etymology_text": "From Old Norse þrettán, from Proto-Germanic *þritehun.",
  "head_templates": [
    {
      "args": {
        "1": "indecl",
        "pos": "numeral"
      },
      "expansion": "þrettán (indeclinable)",
      "name": "is-adj"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "Icelandic cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Icelandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "There are thirteen Yule Lads in the Icelandic legends.",
          "text": "Það eru þrettán jólasveinar í íslenskum þjóðsögum.",
          "type": "example"
        }
      ],
      "glosses": [
        "thirteen"
      ],
      "id": "en-þrettán-is-num-nsyB8KS2",
      "links": [
        [
          "thirteen",
          "thirteen"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈθrɛhtauːn/"
    }
  ],
  "word": "þrettán"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "is",
        "2": "non",
        "3": "þrettán"
      },
      "expansion": "Old Norse þrettán",
      "name": "inh"
    },
    {
      "args": {
        "1": "is",
        "2": "gem-pro",
        "3": "*þritehun"
      },
      "expansion": "Proto-Germanic *þritehun",
      "name": "der"
    }
  ],
  "etymology_text": "From Old Norse þrettán, from Proto-Germanic *þritehun.",
  "head_templates": [
    {
      "args": {
        "1": "indecl",
        "pos": "numeral"
      },
      "expansion": "þrettán (indeclinable)",
      "name": "is-adj"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Icelandic cardinal numbers",
        "Icelandic entries with incorrect language header",
        "Icelandic indeclinable numerals",
        "Icelandic lemmas",
        "Icelandic numerals",
        "Icelandic terms derived from Old Norse",
        "Icelandic terms derived from Proto-Germanic",
        "Icelandic terms inherited from Old Norse",
        "Icelandic terms with redundant head parameter",
        "Icelandic terms with usage examples",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "There are thirteen Yule Lads in the Icelandic legends.",
          "text": "Það eru þrettán jólasveinar í íslenskum þjóðsögum.",
          "type": "example"
        }
      ],
      "glosses": [
        "thirteen"
      ],
      "links": [
        [
          "thirteen",
          "thirteen"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈθrɛhtauːn/"
    }
  ],
  "word": "þrettán"
}