"cannot but" meaning in English

{
  "forms": [
    {
      "form": "cannot but",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "could not but",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cannot<cannot,-,could not,-> but"
      },
      "expansion": "cannot but (third-person singular simple present cannot but, no present participle, simple past could not but, no past participle)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "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 entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English negative polarity items",
          "parents": [
            "Negative polarity items",
            "Terms by semantic function"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1789, Benjamin Franklin, “Letter to Noah Webster, December 26, 1789”, in E. Sargent, editor, The select works of Benjamin Franklin, published 1855, page 498",
          "text": "I cannot but applaud your zeal for preserving the purity of our language, both in its expressions and pronunciation, and in correcting the popular errors several of our States are continually falling into with respect to both.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To have to; to cannot help; to be unable to do otherwise than."
      ],
      "id": "en-cannot_but-en-verb-e8qB1t94",
      "links": [
        [
          "have to",
          "have to"
        ],
        [
          "unable",
          "unable"
        ],
        [
          "otherwise",
          "otherwise"
        ],
        [
          "than",
          "than"
        ]
      ],
      "synonyms": [
        {
          "word": "cannot help but"
        },
        {
          "word": "can't help but"
        },
        {
          "word": "can't but"
        }
      ],
      "tags": [
        "no-past-participle",
        "no-present-participle"
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "cannot but",
          "word": "ne pas pouvoir ne pas"
        },
        {
          "code": "sw",
          "lang": "Swahili",
          "sense": "cannot but",
          "word": "siwezi lakini"
        }
      ]
    }
  ],
  "word": "cannot but"
}

{
  "forms": [
    {
      "form": "cannot but",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "could not but",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cannot<cannot,-,could not,-> but"
      },
      "expansion": "cannot but (third-person singular simple present cannot but, no present participle, simple past could not but, no past participle)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English negative polarity items",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English verbs"
      ],
      "examples": [
        {
          "ref": "1789, Benjamin Franklin, “Letter to Noah Webster, December 26, 1789”, in E. Sargent, editor, The select works of Benjamin Franklin, published 1855, page 498",
          "text": "I cannot but applaud your zeal for preserving the purity of our language, both in its expressions and pronunciation, and in correcting the popular errors several of our States are continually falling into with respect to both.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To have to; to cannot help; to be unable to do otherwise than."
      ],
      "links": [
        [
          "have to",
          "have to"
        ],
        [
          "unable",
          "unable"
        ],
        [
          "otherwise",
          "otherwise"
        ],
        [
          "than",
          "than"
        ]
      ],
      "tags": [
        "no-past-participle",
        "no-present-participle"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "cannot help but"
    },
    {
      "word": "can't help but"
    },
    {
      "word": "can't but"
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "cannot but",
      "word": "ne pas pouvoir ne pas"
    },
    {
      "code": "sw",
      "lang": "Swahili",
      "sense": "cannot but",
      "word": "siwezi lakini"
    }
  ],
  "word": "cannot but"
}