"なーくー" meaning in Okinawan

{
  "etymology_text": "Vowel lengthening of the second syllable of なーく (Nāku, “Miyako”).",
  "forms": [
    {
      "form": "nākū",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "noun"
      },
      "expansion": "なーくー (nākū)",
      "name": "ryu-head"
    }
  ],
  "lang": "Okinawan",
  "lang_code": "ryu",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Okinawan entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Okinawan hiragana",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Okinawan terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "a Miyako islander, person from Miyako Islands"
      ],
      "id": "en-なーくー-ryu-noun-h~L1GrJa",
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "Miyako",
          "Miyako"
        ]
      ],
      "raw_glosses": [
        "(derogatory) a Miyako islander, person from Miyako Islands"
      ],
      "tags": [
        "derogatory"
      ]
    }
  ],
  "word": "なーくー"
}

{
  "etymology_text": "Vowel lengthening of the second syllable of なーく (Nāku, “Miyako”).",
  "forms": [
    {
      "form": "nākū",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "noun"
      },
      "expansion": "なーくー (nākū)",
      "name": "ryu-head"
    }
  ],
  "lang": "Okinawan",
  "lang_code": "ryu",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Okinawan derogatory terms",
        "Okinawan entries with incorrect language header",
        "Okinawan hiragana",
        "Okinawan lemmas",
        "Okinawan nouns",
        "Okinawan terms spelled with ー",
        "Okinawan terms with redundant sortkeys",
        "Pages with 1 entry"
      ],
      "glosses": [
        "a Miyako islander, person from Miyako Islands"
      ],
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "Miyako",
          "Miyako"
        ]
      ],
      "raw_glosses": [
        "(derogatory) a Miyako islander, person from Miyako Islands"
      ],
      "tags": [
        "derogatory"
      ]
    }
  ],
  "word": "なーくー"
}