"ei" meaning in Faroese

{
  "etymology_templates": [
    {
      "args": {
        "1": "fo",
        "2": "non",
        "3": "eigi"
      },
      "expansion": "Old Norse eigi",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old Norse eigi.",
  "head_templates": [
    {
      "args": {
        "1": "fo",
        "2": "adverb"
      },
      "expansion": "ei",
      "name": "head"
    }
  ],
  "lang": "Faroese",
  "lang_code": "fo",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Faroese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 47 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "as well as",
          "word": "ei og ikki"
        },
        {
          "word": "both ... and"
        },
        {
          "english": "do not weep",
          "roman": "song title by Eivør Pálsdóttir, 2007",
          "word": "grát ei"
        }
      ],
      "glosses": [
        "not"
      ],
      "id": "en-ei-fo-adv-JUu5e1fx",
      "links": [
        [
          "not",
          "not"
        ]
      ],
      "synonyms": [
        {
          "word": "ikki"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ai]"
    }
  ],
  "word": "ei"
}

{
  "derived": [
    {
      "english": "as well as",
      "word": "ei og ikki"
    },
    {
      "word": "both ... and"
    },
    {
      "english": "do not weep",
      "roman": "song title by Eivør Pálsdóttir, 2007",
      "word": "grát ei"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fo",
        "2": "non",
        "3": "eigi"
      },
      "expansion": "Old Norse eigi",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old Norse eigi.",
  "head_templates": [
    {
      "args": {
        "1": "fo",
        "2": "adverb"
      },
      "expansion": "ei",
      "name": "head"
    }
  ],
  "lang": "Faroese",
  "lang_code": "fo",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Faroese adverbs",
        "Faroese entries with incorrect language header",
        "Faroese lemmas",
        "Faroese terms derived from Old Norse",
        "Faroese terms inherited from Old Norse",
        "Pages with 47 entries",
        "Pages with entries"
      ],
      "glosses": [
        "not"
      ],
      "links": [
        [
          "not",
          "not"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ai]"
    }
  ],
  "synonyms": [
    {
      "word": "ikki"
    }
  ],
  "word": "ei"
}