"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": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Historical periods",
          "orig": "ja:Historical periods",
          "parents": [
            "History",
            "Timekeeping",
            "All topics",
            "Time",
            "Fundamental"
          ],
          "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 IPA pronunciation",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters",
        "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": ""
}