"былыргы" meaning in Yakut

{
  "etymology_text": "From былыр (bılır, “formerly, anciently”).",
  "forms": [
    {
      "form": "bılırgı",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sah",
        "2": "adjective"
      },
      "expansion": "былыргы • (bılırgı)",
      "name": "head"
    }
  ],
  "lang": "Yakut",
  "lang_code": "sah",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Yakut entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "pertaining to ancient times",
          "roman": "bılırgıtaağı",
          "word": "былыргытааҕы"
        }
      ],
      "examples": [
        {
          "english": "an ancient legend",
          "roman": "bılırgı ühüyeen",
          "text": "былыргы үһүйээн",
          "type": "example"
        }
      ],
      "glosses": [
        "ancient, long-standing"
      ],
      "id": "en-былыргы-sah-adj-ROynq45X",
      "links": [
        [
          "ancient",
          "ancient"
        ],
        [
          "long-standing",
          "long-standing"
        ]
      ],
      "synonyms": [
        {
          "word": "эргэ"
        }
      ]
    }
  ],
  "word": "былыргы"
}

{
  "derived": [
    {
      "english": "pertaining to ancient times",
      "roman": "bılırgıtaağı",
      "word": "былыргытааҕы"
    }
  ],
  "etymology_text": "From былыр (bılır, “formerly, anciently”).",
  "forms": [
    {
      "form": "bılırgı",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sah",
        "2": "adjective"
      },
      "expansion": "былыргы • (bılırgı)",
      "name": "head"
    }
  ],
  "lang": "Yakut",
  "lang_code": "sah",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Yakut adjectives",
        "Yakut entries with incorrect language header",
        "Yakut lemmas",
        "Yakut terms with usage examples"
      ],
      "examples": [
        {
          "english": "an ancient legend",
          "roman": "bılırgı ühüyeen",
          "text": "былыргы үһүйээн",
          "type": "example"
        }
      ],
      "glosses": [
        "ancient, long-standing"
      ],
      "links": [
        [
          "ancient",
          "ancient"
        ],
        [
          "long-standing",
          "long-standing"
        ]
      ],
      "synonyms": [
        {
          "word": "эргэ"
        }
      ]
    }
  ],
  "word": "былыргы"
}