"onliness" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "onlinesse"
      },
      "expansion": "Middle English onlinesse",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "only",
        "3": "ness"
      },
      "expansion": "only + -ness",
      "name": "suffix"
    }
  ],
  "etymology_text": "From Middle English onlinesse, equivalent to only + -ness.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "onliness (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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 -ness",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The state of being alone or unique."
      ],
      "id": "en-onliness-en-noun-YpEUVt~s",
      "links": [
        [
          "alone",
          "alone"
        ],
        [
          "unique",
          "unique"
        ]
      ],
      "raw_glosses": [
        "(archaic) The state of being alone or unique."
      ],
      "tags": [
        "archaic",
        "uncountable"
      ]
    }
  ],
  "word": "onliness"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "onlinesse"
      },
      "expansion": "Middle English onlinesse",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "only",
        "3": "ness"
      },
      "expansion": "only + -ness",
      "name": "suffix"
    }
  ],
  "etymology_text": "From Middle English onlinesse, equivalent to only + -ness.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "onliness (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms derived from Middle English",
        "English terms inherited from Middle English",
        "English terms suffixed with -ness",
        "English terms with archaic senses",
        "English uncountable nouns"
      ],
      "glosses": [
        "The state of being alone or unique."
      ],
      "links": [
        [
          "alone",
          "alone"
        ],
        [
          "unique",
          "unique"
        ]
      ],
      "raw_glosses": [
        "(archaic) The state of being alone or unique."
      ],
      "tags": [
        "archaic",
        "uncountable"
      ]
    }
  ],
  "word": "onliness"
}