"gangi þér vel" meaning in Icelandic

{
  "etymology_templates": [
    {
      "args": {
        "1": "is",
        "2": "ganga vel",
        "3": "",
        "4": "to do well, to go well"
      },
      "expansion": "ganga vel (“to do well, to go well”)",
      "name": "m"
    },
    {
      "args": {
        "1": "is",
        "2": "þér",
        "3": "",
        "4": "to you"
      },
      "expansion": "þér (“to you”)",
      "name": "m"
    },
    {
      "args": {
        "1": "is",
        "2": "þú",
        "3": "",
        "4": "you"
      },
      "expansion": "þú (“you”)",
      "name": "m"
    }
  ],
  "etymology_text": "See ganga vel (“to do well, to go well”) and þér (“to you”), the dative case of þú (“you”).",
  "forms": [
    {
      "form": "gangi þér vel !",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "gangi ykkur vel",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "interjection",
        "3": "plural",
        "4": "gangi ykkur vel",
        "head": "gangi þér vel!"
      },
      "expansion": "gangi þér vel! (plural gangi ykkur vel)",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Icelandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Icelandic entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Icelandic phrasebook",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Icelandic terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Good luck with the exam!",
          "text": "Gangi þér vel í prófinu!",
          "type": "example"
        },
        {
          "english": "Have fun in Japan and good luck.",
          "text": "Skemmtu þér vel í Japan og gangi þér vel.",
          "type": "example"
        }
      ],
      "glosses": [
        "good luck!"
      ],
      "id": "en-gangi_þér_vel-is-intj-Hn~siGzK",
      "links": [
        [
          "good luck",
          "good luck"
        ]
      ]
    }
  ],
  "word": "gangi þér vel"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "is",
        "2": "ganga vel",
        "3": "",
        "4": "to do well, to go well"
      },
      "expansion": "ganga vel (“to do well, to go well”)",
      "name": "m"
    },
    {
      "args": {
        "1": "is",
        "2": "þér",
        "3": "",
        "4": "to you"
      },
      "expansion": "þér (“to you”)",
      "name": "m"
    },
    {
      "args": {
        "1": "is",
        "2": "þú",
        "3": "",
        "4": "you"
      },
      "expansion": "þú (“you”)",
      "name": "m"
    }
  ],
  "etymology_text": "See ganga vel (“to do well, to go well”) and þér (“to you”), the dative case of þú (“you”).",
  "forms": [
    {
      "form": "gangi þér vel !",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "gangi ykkur vel",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "interjection",
        "3": "plural",
        "4": "gangi ykkur vel",
        "head": "gangi þér vel!"
      },
      "expansion": "gangi þér vel! (plural gangi ykkur vel)",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "Icelandic entries with incorrect language header",
        "Icelandic entries with language name categories using raw markup",
        "Icelandic interjections",
        "Icelandic lemmas",
        "Icelandic multiword terms",
        "Icelandic phrasebook",
        "Icelandic terms with non-redundant non-automated sortkeys",
        "Icelandic terms with usage examples"
      ],
      "examples": [
        {
          "english": "Good luck with the exam!",
          "text": "Gangi þér vel í prófinu!",
          "type": "example"
        },
        {
          "english": "Have fun in Japan and good luck.",
          "text": "Skemmtu þér vel í Japan og gangi þér vel.",
          "type": "example"
        }
      ],
      "glosses": [
        "good luck!"
      ],
      "links": [
        [
          "good luck",
          "good luck"
        ]
      ]
    }
  ],
  "word": "gangi þér vel"
}