"usedn't to" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "contraction",
        "head": "usedn't to"
      },
      "expansion": "usedn't to",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "contraction",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Irish English",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "He usedn’t to live in London.",
          "type": "example"
        },
        {
          "text": "Usedn't your uncle to live with you?",
          "type": "example"
        }
      ],
      "glosses": [
        "used not to, didn't use to"
      ],
      "id": "en-usedn't_to-en-contraction-U2wrf9hU",
      "links": [
        [
          "used",
          "used to"
        ]
      ],
      "qualifier": "obsolete elsewhere",
      "raw_glosses": [
        "(Ireland, archaic in British, obsolete elsewhere) used not to, didn't use to"
      ],
      "raw_tags": [
        "in British"
      ],
      "synonyms": [
        {
          "word": "usen't to"
        }
      ],
      "tags": [
        "Ireland",
        "archaic",
        "contraction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjuːsn̩t tə/"
    }
  ],
  "word": "usedn't to"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "contraction",
        "head": "usedn't to"
      },
      "expansion": "usedn't to",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "contraction",
  "senses": [
    {
      "categories": [
        "British English",
        "English contractions",
        "English entries with incorrect language header",
        "English non-lemma forms",
        "English terms with IPA pronunciation",
        "English terms with archaic senses",
        "English terms with obsolete senses",
        "English terms with usage examples",
        "Irish English"
      ],
      "examples": [
        {
          "text": "He usedn’t to live in London.",
          "type": "example"
        },
        {
          "text": "Usedn't your uncle to live with you?",
          "type": "example"
        }
      ],
      "glosses": [
        "used not to, didn't use to"
      ],
      "links": [
        [
          "used",
          "used to"
        ]
      ],
      "qualifier": "obsolete elsewhere",
      "raw_glosses": [
        "(Ireland, archaic in British, obsolete elsewhere) used not to, didn't use to"
      ],
      "raw_tags": [
        "in British"
      ],
      "tags": [
        "Ireland",
        "archaic",
        "contraction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjuːsn̩t tə/"
    }
  ],
  "synonyms": [
    {
      "word": "usen't to"
    }
  ],
  "word": "usedn't to"
}