"милостивый государь" meaning in Russian

{
  "forms": [
    {
      "form": "ми́лостивый госуда́рь",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "mílostivyj gosudárʹ",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "interjection",
        "head": "ми́лостивый госуда́рь"
      },
      "expansion": "ми́лостивый госуда́рь • (mílostivyj gosudárʹ)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian terms of address",
          "parents": [
            "Terms of address",
            "Terms by usage"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "english": "dear madam; for a female reader or authority who reads the letter",
          "roman": "mílostivaja gosudárynja",
          "word": "ми́лостивая госуда́рыня"
        }
      ],
      "glosses": [
        "dear sir; greetings"
      ],
      "id": "en-милостивый_государь-ru-intj-Kf8z5oCB",
      "links": [
        [
          "dear",
          "dear"
        ],
        [
          "sir",
          "sir"
        ],
        [
          "greetings",
          "greetings"
        ]
      ],
      "raw_glosses": [
        "(formal, historical) dear sir; greetings"
      ],
      "synonyms": [
        {
          "roman": "zdrávstvujte",
          "tags": [
            "formal",
            "modern"
          ],
          "word": "здра́вствуйте"
        },
        {
          "roman": "privét",
          "word": "приве́т"
        },
        {
          "roman": "zdoróvo",
          "tags": [
            "informal",
            "modern"
          ],
          "word": "здоро́во"
        },
        {
          "roman": "gosudárʹ moj",
          "word": "госуда́рь мой"
        },
        {
          "roman": "mílostivyj gosudárʹ moj",
          "word": "ми́лостивый госуда́рь мой"
        }
      ],
      "tags": [
        "formal",
        "historical"
      ]
    }
  ],
  "word": "милостивый государь"
}

{
  "coordinate_terms": [
    {
      "english": "dear madam; for a female reader or authority who reads the letter",
      "roman": "mílostivaja gosudárynja",
      "word": "ми́лостивая госуда́рыня"
    }
  ],
  "forms": [
    {
      "form": "ми́лостивый госуда́рь",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "mílostivyj gosudárʹ",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "interjection",
        "head": "ми́лостивый госуда́рь"
      },
      "expansion": "ми́лостивый госуда́рь • (mílostivyj gosudárʹ)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian entries with incorrect language header",
        "Russian formal terms",
        "Russian interjections",
        "Russian lemmas",
        "Russian multiword terms",
        "Russian terms of address",
        "Russian terms with historical senses"
      ],
      "glosses": [
        "dear sir; greetings"
      ],
      "links": [
        [
          "dear",
          "dear"
        ],
        [
          "sir",
          "sir"
        ],
        [
          "greetings",
          "greetings"
        ]
      ],
      "raw_glosses": [
        "(formal, historical) dear sir; greetings"
      ],
      "tags": [
        "formal",
        "historical"
      ]
    }
  ],
  "synonyms": [
    {
      "roman": "zdrávstvujte",
      "tags": [
        "formal",
        "modern"
      ],
      "word": "здра́вствуйте"
    },
    {
      "roman": "privét",
      "word": "приве́т"
    },
    {
      "roman": "zdoróvo",
      "tags": [
        "informal",
        "modern"
      ],
      "word": "здоро́во"
    },
    {
      "roman": "gosudárʹ moj",
      "word": "госуда́рь мой"
    },
    {
      "roman": "mílostivyj gosudárʹ moj",
      "word": "ми́лостивый госуда́рь мой"
    }
  ],
  "word": "милостивый государь"
}