"optionary" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "option",
        "3": "ary"
      },
      "expansion": "option + -ary",
      "name": "suffix"
    }
  ],
  "etymology_text": "option + -ary",
  "forms": [
    {
      "form": "more optionary",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most optionary",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "optionary (comparative more optionary, superlative most optionary)",
      "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 suffixed with -ary",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1856, The Presbyterian magazine, volume 6, page 429",
          "text": "The idea that giving is a mere optionary thing, to be done, or not done, as one pleases, seems to be the prevailing one at present.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "optional"
      ],
      "id": "en-optionary-en-adj-7JH92SVs",
      "links": [
        [
          "optional",
          "optional"
        ]
      ],
      "raw_glosses": [
        "(dated) optional"
      ],
      "tags": [
        "dated"
      ]
    }
  ],
  "word": "optionary"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "option",
        "3": "ary"
      },
      "expansion": "option + -ary",
      "name": "suffix"
    }
  ],
  "etymology_text": "option + -ary",
  "forms": [
    {
      "form": "more optionary",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most optionary",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "optionary (comparative more optionary, superlative most optionary)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English dated terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms suffixed with -ary",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1856, The Presbyterian magazine, volume 6, page 429",
          "text": "The idea that giving is a mere optionary thing, to be done, or not done, as one pleases, seems to be the prevailing one at present.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "optional"
      ],
      "links": [
        [
          "optional",
          "optional"
        ]
      ],
      "raw_glosses": [
        "(dated) optional"
      ],
      "tags": [
        "dated"
      ]
    }
  ],
  "word": "optionary"
}