"jessör" meaning in Finnish

{
  "etymology_templates": [
    {
      "args": {
        "1": "fi",
        "2": "en",
        "3": "yessir"
      },
      "expansion": "English yessir",
      "name": "bor"
    }
  ],
  "etymology_text": "< English yessir",
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "interjections",
        "head": ""
      },
      "expansion": "jessör",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "jessör",
      "name": "fi-int"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Finnish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "yessir (used to express assent, especially to a superior)"
      ],
      "id": "en-jessör-fi-intj-D4LNNQVP",
      "links": [
        [
          "yessir",
          "yessir"
        ]
      ],
      "synonyms": [
        {
          "word": "kyllä herra"
        }
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjesːør/"
    },
    {
      "ipa": "[ˈje̞s̠ːø̞r]"
    },
    {
      "rhymes": "-esːør"
    }
  ],
  "word": "jessör"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fi",
        "2": "en",
        "3": "yessir"
      },
      "expansion": "English yessir",
      "name": "bor"
    }
  ],
  "etymology_text": "< English yessir",
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "interjections",
        "head": ""
      },
      "expansion": "jessör",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "jessör",
      "name": "fi-int"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "Finnish 2-syllable words",
        "Finnish entries with incorrect language header",
        "Finnish informal terms",
        "Finnish interjections",
        "Finnish lemmas",
        "Finnish terms borrowed from English",
        "Finnish terms derived from English",
        "Finnish terms with IPA pronunciation",
        "Rhymes:Finnish/esːør",
        "Rhymes:Finnish/esːør/2 syllables"
      ],
      "glosses": [
        "yessir (used to express assent, especially to a superior)"
      ],
      "links": [
        [
          "yessir",
          "yessir"
        ]
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjesːør/"
    },
    {
      "ipa": "[ˈje̞s̠ːø̞r]"
    },
    {
      "rhymes": "-esːør"
    }
  ],
  "synonyms": [
    {
      "word": "kyllä herra"
    }
  ],
  "word": "jessör"
}