"upon my word" meaning in English

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          "text": "Salvatore had enormous hands, like legs of mutton, coarse and hard from constant toil, but when he bathed his children, holding them so tenderly, drying them with delicate care; upon my word they were like flowers.",
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      "glosses": [
        "Believe my words; I swear."
      ],
      "id": "en-upon_my_word-en-intj-Me442PDR",
      "links": [
        [
          "Believe",
          "believe"
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          "swear",
          "swear"
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      "raw_glosses": [
        "(dated) Believe my words; I swear."
      ],
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      "translations": [
        {
          "_dis1": "94 6",
          "code": "eo",
          "lang": "Esperanto",
          "lang_code": "eo",
          "sense": "believe my words",
          "word": "je mia vorto"
        },
        {
          "_dis1": "94 6",
          "code": "pl",
          "lang": "Polish",
          "lang_code": "pl",
          "sense": "believe my words",
          "word": "dalibóg"
        },
        {
          "_dis1": "94 6",
          "code": "pl",
          "lang": "Polish",
          "lang_code": "pl",
          "sense": "believe my words",
          "word": "doprawdy"
        },
        {
          "_dis1": "94 6",
          "code": "pl",
          "lang": "Polish",
          "lang_code": "pl",
          "sense": "believe my words",
          "word": "słowo daję"
        }
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          "ref": "1871, Mary Elizabeth Braddon, Fenton's Quest:",
          "text": "'Well, upon my word,' exclaimed the father, taking the pipe from his mouth, and staring aghast at his daughter in a stupor of indignant surprise, 'you're a pretty article; you're a nice piece of goods for a man to bring up and waste his substance upon […]",
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      "glosses": [
        "Expressing surprise."
      ],
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        "(dated) Expressing surprise."
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      "synonyms": [
        {
          "word": "my word"
        }
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      "translations": [
        {
          "_dis1": "1 99",
          "code": "eo",
          "lang": "Esperanto",
          "lang_code": "eo",
          "sense": "expressing surprise",
          "word": "je mia vorto"
        },
        {
          "_dis1": "1 99",
          "code": "pl",
          "lang": "Polish",
          "lang_code": "pl",
          "sense": "expressing surprise",
          "word": "masz babo placek"
        },
        {
          "_dis1": "1 99",
          "code": "pl",
          "lang": "Polish",
          "lang_code": "pl",
          "sense": "expressing surprise",
          "word": "nie mów"
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  "word": "upon my word"
}

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      ],
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        "Believe my words; I swear."
      ],
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        "(dated) Believe my words; I swear."
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          "text": "'Well, upon my word,' exclaimed the father, taking the pipe from his mouth, and staring aghast at his daughter in a stupor of indignant surprise, 'you're a pretty article; you're a nice piece of goods for a man to bring up and waste his substance upon […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Expressing surprise."
      ],
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        "(dated) Expressing surprise."
      ],
      "synonyms": [
        {
          "word": "my word"
        }
      ],
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  "translations": [
    {
      "code": "eo",
      "lang": "Esperanto",
      "lang_code": "eo",
      "sense": "believe my words",
      "word": "je mia vorto"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "lang_code": "pl",
      "sense": "believe my words",
      "word": "dalibóg"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "lang_code": "pl",
      "sense": "believe my words",
      "word": "doprawdy"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "lang_code": "pl",
      "sense": "believe my words",
      "word": "słowo daję"
    },
    {
      "code": "eo",
      "lang": "Esperanto",
      "lang_code": "eo",
      "sense": "expressing surprise",
      "word": "je mia vorto"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "lang_code": "pl",
      "sense": "expressing surprise",
      "word": "masz babo placek"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "lang_code": "pl",
      "sense": "expressing surprise",
      "word": "nie mów"
    }
  ],
  "word": "upon my word"
}