"by George" meaning in English

{
  "etymology_text": "\"By (God and Saint) George\" is an old English oath invoked immediately before charging into battle as late as World War I. A version of the oath can be found in Shakespeare's Henry VI (part I), written circa 1589 and set in 1431.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "by George (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "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": "topical",
          "name": "English minced oaths",
          "parents": [
            "Minced oaths",
            "Euphemisms",
            "Figures of speech",
            "Rhetoric",
            "Language",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "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"
        }
      ],
      "glosses": [
        "By God!: expressing wonderment, zeal."
      ],
      "id": "en-by_George-en-adv-5-Gmli-U",
      "links": [
        [
          "minced oath",
          "minced oath"
        ],
        [
          "wonderment",
          "wonderment"
        ]
      ],
      "qualifier": "minced oath",
      "raw_glosses": [
        "(minced oath) By God!: expressing wonderment, zeal."
      ],
      "related": [
        {
          "word": "minced oath"
        }
      ],
      "synonyms": [
        {
          "word": "wow"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "by George"
}

{
  "etymology_text": "\"By (God and Saint) George\" is an old English oath invoked immediately before charging into battle as late as World War I. A version of the oath can be found in Shakespeare's Henry VI (part I), written circa 1589 and set in 1431.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "by George (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "related": [
    {
      "word": "minced oath"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adverbs",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English minced oaths",
        "English multiword terms",
        "English prepositional phrases",
        "English terms with non-redundant non-automated sortkeys",
        "English uncomparable adverbs"
      ],
      "glosses": [
        "By God!: expressing wonderment, zeal."
      ],
      "links": [
        [
          "minced oath",
          "minced oath"
        ],
        [
          "wonderment",
          "wonderment"
        ]
      ],
      "qualifier": "minced oath",
      "raw_glosses": [
        "(minced oath) By God!: expressing wonderment, zeal."
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "wow"
    }
  ],
  "word": "by George"
}