"til hamingju" meaning in Icelandic

{
  "etymology_text": "From til (“to”) + hamingju the genitive of hamingja (“happiness”).",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "adverb",
        "head": "til hamingju"
      },
      "expansion": "til hamingju",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Icelandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "til hamingju með daginn"
        },
        {
          "word": "til hamingju með afmælið"
        },
        {
          "word": "óska til hamingju"
        }
      ],
      "examples": [
        {
          "english": "Congratulations dude. That was well done.",
          "text": "Til hamingju karlinn. Þetta var flott hjá þér.",
          "type": "example"
        }
      ],
      "glosses": [
        "congratulations"
      ],
      "id": "en-til_hamingju-is-adv-5YwfXCLB",
      "links": [
        [
          "congratulations",
          "congratulations"
        ]
      ],
      "synonyms": [
        {
          "sense": "congratulations",
          "word": "gott hjá þér"
        }
      ]
    }
  ],
  "word": "til hamingju"
}

{
  "derived": [
    {
      "word": "til hamingju með daginn"
    },
    {
      "word": "til hamingju með afmælið"
    },
    {
      "word": "óska til hamingju"
    }
  ],
  "etymology_text": "From til (“to”) + hamingju the genitive of hamingja (“happiness”).",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "adverb",
        "head": "til hamingju"
      },
      "expansion": "til hamingju",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Icelandic adverbs",
        "Icelandic entries with incorrect language header",
        "Icelandic lemmas",
        "Icelandic multiword terms",
        "Icelandic terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "Congratulations dude. That was well done.",
          "text": "Til hamingju karlinn. Þetta var flott hjá þér.",
          "type": "example"
        }
      ],
      "glosses": [
        "congratulations"
      ],
      "links": [
        [
          "congratulations",
          "congratulations"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "congratulations",
      "word": "gott hjá þér"
    }
  ],
  "word": "til hamingju"
}