"ertu" meaning in Icelandic

{
  "etymology_templates": [
    {
      "args": {
        "1": "sv",
        "2": "äru"
      },
      "expansion": "Swedish äru",
      "name": "cog"
    }
  ],
  "etymology_text": "From ert (“[you] are”) + þú (“you”). Compare Swedish äru.",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "contractions"
      },
      "expansion": "ertu",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "contraction",
  "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"
        }
      ],
      "examples": [
        {
          "english": "Who are you?",
          "text": "Hver ertu?",
          "type": "example"
        },
        {
          "english": "Aren't you tired? You haven't slept at all.",
          "text": "Ertu ekki þreyttur? Þú hefur ekki sofið neitt.",
          "type": "example"
        }
      ],
      "glosses": [
        "you are, are you"
      ],
      "id": "en-ertu-is-contraction-gsy0qXaw",
      "links": [
        [
          "you",
          "you"
        ],
        [
          "are",
          "are"
        ]
      ],
      "tags": [
        "contraction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɛr̥tʏ/"
    }
  ],
  "word": "ertu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sv",
        "2": "äru"
      },
      "expansion": "Swedish äru",
      "name": "cog"
    }
  ],
  "etymology_text": "From ert (“[you] are”) + þú (“you”). Compare Swedish äru.",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "contractions"
      },
      "expansion": "ertu",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "contraction",
  "senses": [
    {
      "categories": [
        "Icelandic contractions",
        "Icelandic entries with incorrect language header",
        "Icelandic non-lemma forms",
        "Icelandic terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "Who are you?",
          "text": "Hver ertu?",
          "type": "example"
        },
        {
          "english": "Aren't you tired? You haven't slept at all.",
          "text": "Ertu ekki þreyttur? Þú hefur ekki sofið neitt.",
          "type": "example"
        }
      ],
      "glosses": [
        "you are, are you"
      ],
      "links": [
        [
          "you",
          "you"
        ],
        [
          "are",
          "are"
        ]
      ],
      "tags": [
        "contraction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɛr̥tʏ/"
    }
  ],
  "word": "ertu"
}