"decennal" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "decennalis",
        "4": "decennālis",
        "5": "decennial"
      },
      "expansion": "Latin decennālis (“decennial”)",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "decennium",
        "3": "al"
      },
      "expansion": "decennium + -al",
      "name": "suffix"
    }
  ],
  "etymology_text": "From Latin decennālis (“decennial”), from decennis (“10-year”) + -ālis (“-al”, adjective-forming suffix), from decem (“ten”) + annus (“year”) + -is (suffix forming compound adjectives). Equivalent to decennium + -al.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "decennal (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with dec-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -al",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin links with redundant target parameters",
          "parents": [
            "Links with redundant target parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ten",
          "orig": "en:Ten",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Time",
          "orig": "en:Time",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1648, Marchamont Nedham, Plea for the King and Kingdome..., page 26:",
          "text": "They... appointed Archons, or Decennall Governors, that is, one Prince for ten years.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of decennial, of or related to a 10-year period."
      ],
      "id": "en-decennal-en-adj-9H3R2H0-",
      "links": [
        [
          "decennial",
          "decennial#English"
        ],
        [
          "related",
          "related"
        ],
        [
          "10",
          "10"
        ],
        [
          "year",
          "year"
        ],
        [
          "period",
          "period"
        ]
      ],
      "raw_glosses": [
        "(obsolete) Synonym of decennial, of or related to a 10-year period."
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "decennial"
        },
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "of or related to a 10-year period"
        }
      ],
      "tags": [
        "not-comparable",
        "obsolete"
      ]
    }
  ],
  "word": "decennal"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "decennalis",
        "4": "decennālis",
        "5": "decennial"
      },
      "expansion": "Latin decennālis (“decennial”)",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "decennium",
        "3": "al"
      },
      "expansion": "decennium + -al",
      "name": "suffix"
    }
  ],
  "etymology_text": "From Latin decennālis (“decennial”), from decennis (“10-year”) + -ālis (“-al”, adjective-forming suffix), from decem (“ten”) + annus (“year”) + -is (suffix forming compound adjectives). Equivalent to decennium + -al.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "decennal (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms derived from Latin",
        "English terms prefixed with dec-",
        "English terms suffixed with -al",
        "English terms with obsolete senses",
        "English terms with quotations",
        "English uncomparable adjectives",
        "Latin links with redundant target parameters",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Ten",
        "en:Time"
      ],
      "examples": [
        {
          "ref": "1648, Marchamont Nedham, Plea for the King and Kingdome..., page 26:",
          "text": "They... appointed Archons, or Decennall Governors, that is, one Prince for ten years.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of decennial, of or related to a 10-year period."
      ],
      "links": [
        [
          "decennial",
          "decennial#English"
        ],
        [
          "related",
          "related"
        ],
        [
          "10",
          "10"
        ],
        [
          "year",
          "year"
        ],
        [
          "period",
          "period"
        ]
      ],
      "raw_glosses": [
        "(obsolete) Synonym of decennial, of or related to a 10-year period."
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "decennial"
        },
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "of or related to a 10-year period"
        }
      ],
      "tags": [
        "not-comparable",
        "obsolete"
      ]
    }
  ],
  "word": "decennal"
}