"ic nat" meaning in Old English

{
  "forms": [
    {
      "form": "iċ nāt",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ang",
        "2": "phrase",
        "head": "iċ nāt"
      },
      "expansion": "iċ nāt",
      "name": "head"
    }
  ],
  "lang": "Old English",
  "lang_code": "ang",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Then they said to him, \"Where is he?\" And he said, \"I don't know.\"",
          "roman": "Þā cwǣdon hīe tō him, \"Hwǣr is hē?\" Þā cwæþ hē, \"Iċ nāt.\"",
          "text": "c. 990, Wessex Gospels, John 9:12",
          "type": "quotation"
        },
        {
          "english": "Then the Lord said to Cain, \"Where is your brother Abel?\" And he answered and said, \"I don't know. Am I my brother's keeper?\"",
          "roman": "Þā cwæþ Dryhten tō Caine, \"Hwǣr is Abel þīn brōðor?\" Þā andswarode hē and cwæþ, \"Iċ nāt. Sæġst þū, sċolde iċ mīnne brōðor healdan?\"",
          "text": "late 10th century, Ælfric, the Old English Hexateuch, Genesis 4:9",
          "type": "quotation"
        }
      ],
      "glosses": [
        "I don't know"
      ],
      "id": "en-ic_nat-ang-phrase-gHpPMC57",
      "links": [
        [
          "I don't know",
          "I don't know"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/it͡ʃ nɑːt/"
    }
  ],
  "word": "ic nat"
}

{
  "forms": [
    {
      "form": "iċ nāt",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ang",
        "2": "phrase",
        "head": "iċ nāt"
      },
      "expansion": "iċ nāt",
      "name": "head"
    }
  ],
  "lang": "Old English",
  "lang_code": "ang",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "Old English entries with incorrect language header",
        "Old English lemmas",
        "Old English multiword terms",
        "Old English phrases",
        "Old English terms with IPA pronunciation",
        "Old English terms with quotations"
      ],
      "examples": [
        {
          "english": "Then they said to him, \"Where is he?\" And he said, \"I don't know.\"",
          "roman": "Þā cwǣdon hīe tō him, \"Hwǣr is hē?\" Þā cwæþ hē, \"Iċ nāt.\"",
          "text": "c. 990, Wessex Gospels, John 9:12",
          "type": "quotation"
        },
        {
          "english": "Then the Lord said to Cain, \"Where is your brother Abel?\" And he answered and said, \"I don't know. Am I my brother's keeper?\"",
          "roman": "Þā cwæþ Dryhten tō Caine, \"Hwǣr is Abel þīn brōðor?\" Þā andswarode hē and cwæþ, \"Iċ nāt. Sæġst þū, sċolde iċ mīnne brōðor healdan?\"",
          "text": "late 10th century, Ælfric, the Old English Hexateuch, Genesis 4:9",
          "type": "quotation"
        }
      ],
      "glosses": [
        "I don't know"
      ],
      "links": [
        [
          "I don't know",
          "I don't know"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/it͡ʃ nɑːt/"
    }
  ],
  "word": "ic nat"
}