"-NÍÍD" meaning in Navajo

{
  "etymology_text": "-NÍÍD shares many stems with the roots -NIID, -NIIʼ, -NÍÍʼ,-NIʼ, -NÍ, -NIH, -NIIH ~ -LĮH and -NEʼ, each of these being themselves a conflation of several originally distinct roots with at times overlapping meanings, which makes their actual identification often speculative.",
  "head_templates": [
    {
      "args": {
        "1": "nv",
        "2": "root"
      },
      "expansion": "-NÍÍD",
      "name": "head"
    }
  ],
  "lang": "Navajo",
  "lang_code": "nv",
  "pos": "root",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Navajo entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Navajo roots",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "to be true"
      ],
      "id": "en--NÍÍD-nv-root--~jPC7Zc",
      "links": [
        [
          "true",
          "true"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-NÍÍD"
}

{
  "etymology_text": "-NÍÍD shares many stems with the roots -NIID, -NIIʼ, -NÍÍʼ,-NIʼ, -NÍ, -NIH, -NIIH ~ -LĮH and -NEʼ, each of these being themselves a conflation of several originally distinct roots with at times overlapping meanings, which makes their actual identification often speculative.",
  "head_templates": [
    {
      "args": {
        "1": "nv",
        "2": "root"
      },
      "expansion": "-NÍÍD",
      "name": "head"
    }
  ],
  "lang": "Navajo",
  "lang_code": "nv",
  "pos": "root",
  "senses": [
    {
      "categories": [
        "Navajo entries with incorrect language header",
        "Navajo lemmas",
        "Navajo roots",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "to be true"
      ],
      "links": [
        [
          "true",
          "true"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-NÍÍD"
}