"永延" meaning in Japanese

{
  "forms": [
    {
      "form": "永延",
      "ruby": [
        [
          "永",
          "えい"
        ],
        [
          "延",
          "えん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Eien",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "えいえん",
      "roman": "Eien",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "2": "えいえん",
        "hhira": "^えいえん"
      },
      "expansion": "永(えい)延(えん) • (Eien) ^(←えいえん (Eien)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "ja",
          "name": "Historical periods",
          "orig": "ja:Historical periods",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "the Eien era, Japanese era name from 987 to 988"
      ],
      "id": "en-永延-ja-name-qrrcQOF-",
      "related": [
        {
          "english": "era preceding Eien",
          "roman": "Kanna",
          "ruby": [
            [
              "寛",
              "かん"
            ],
            [
              "和",
              "な"
            ]
          ],
          "word": "寛和"
        },
        {
          "english": "era following Eien",
          "roman": "Eiso",
          "ruby": [
            [
              "永",
              "えい"
            ],
            [
              "祚",
              "そ"
            ]
          ],
          "word": "永祚"
        }
      ],
      "wikipedia": [
        "Eien",
        "ja:永延"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[e̞ːẽ̞ɴ]"
    }
  ],
  "word": "永延"
}

{
  "forms": [
    {
      "form": "永延",
      "ruby": [
        [
          "永",
          "えい"
        ],
        [
          "延",
          "えん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Eien",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "えいえん",
      "roman": "Eien",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "2": "えいえん",
        "hhira": "^えいえん"
      },
      "expansion": "永(えい)延(えん) • (Eien) ^(←えいえん (Eien)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
  "related": [
    {
      "english": "era preceding Eien",
      "roman": "Kanna",
      "ruby": [
        [
          "寛",
          "かん"
        ],
        [
          "和",
          "な"
        ]
      ],
      "word": "寛和"
    },
    {
      "english": "era following Eien",
      "roman": "Eiso",
      "ruby": [
        [
          "永",
          "えい"
        ],
        [
          "祚",
          "そ"
        ]
      ],
      "word": "永祚"
    }
  ],
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese proper nouns",
        "Japanese terms spelled with fifth grade kanji",
        "Japanese terms spelled with sixth grade kanji",
        "Japanese terms with 2 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with IPA pronunciation missing pitch accent",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Historical periods"
      ],
      "glosses": [
        "the Eien era, Japanese era name from 987 to 988"
      ],
      "wikipedia": [
        "Eien",
        "ja:永延"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[e̞ːẽ̞ɴ]"
    }
  ],
  "word": "永延"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "永延"
  ],
  "section": "Japanese",
  "subsection": "proper noun",
  "title": "永延",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "永延"
  ],
  "section": "Japanese",
  "subsection": "proper noun",
  "title": "永延",
  "trace": ""
}