"fy" meaning in English

{
  "head_templates": [
    {
      "args": {},
      "expansion": "fy",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "fie"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 7 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1828, James Hogg, Mary Burnet:",
          "text": "\"O fy, Andrew, how can ye say sae? How can ye doubt that it was in the Almighty's name?\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "Archaic form of fie."
      ],
      "id": "en-fy-en-intj-oX5~ya-p",
      "links": [
        [
          "fie",
          "fie#English"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic"
      ]
    }
  ],
  "word": "fy"
}

{
  "categories": [
    "Pages with 7 entries",
    "Pages with entries"
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fy",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "fie"
        }
      ],
      "categories": [
        "English archaic forms",
        "English entries with incorrect language header",
        "English interjections",
        "English lemmas",
        "English terms with quotations",
        "English two-letter words",
        "Pages with 7 entries",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1828, James Hogg, Mary Burnet:",
          "text": "\"O fy, Andrew, how can ye say sae? How can ye doubt that it was in the Almighty's name?\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "Archaic form of fie."
      ],
      "links": [
        [
          "fie",
          "fie#English"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic"
      ]
    }
  ],
  "word": "fy"
}