"Κωστούλης" meaning in Greek

{
  "forms": [
    {
      "form": "Kostoúlis",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "proper noun",
        "g": "m"
      },
      "expansion": "Κωστούλης • (Kostoúlis) m",
      "name": "head"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "Greek diminutives of male given names",
          "parents": [
            "Diminutives of male given names",
            "Male given names",
            "Given names",
            "Diminutive nouns",
            "Names",
            "Nouns",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Lemmas",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A shortened, everyday form of Κωνσταντίνος"
      ],
      "id": "en-Κωστούλης-el-name-IRmz3OEP",
      "links": [
        [
          "Κωνσταντίνος",
          "Κωνσταντίνος"
        ]
      ],
      "related": [
        {
          "roman": "Ntína",
          "word": "Ντίνα"
        },
        {
          "roman": "Ntínos",
          "word": "Ντίνος"
        }
      ]
    }
  ],
  "word": "Κωστούλης"
}

{
  "forms": [
    {
      "form": "Kostoúlis",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "proper noun",
        "g": "m"
      },
      "expansion": "Κωστούλης • (Kostoúlis) m",
      "name": "head"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "name",
  "related": [
    {
      "roman": "Ntína",
      "word": "Ντίνα"
    },
    {
      "roman": "Ntínos",
      "word": "Ντίνος"
    }
  ],
  "senses": [
    {
      "categories": [
        "Greek diminutives of male given names",
        "Greek entries with incorrect language header",
        "Greek lemmas",
        "Greek masculine nouns",
        "Greek proper nouns",
        "Pages with 1 entry"
      ],
      "glosses": [
        "A shortened, everyday form of Κωνσταντίνος"
      ],
      "links": [
        [
          "Κωνσταντίνος",
          "Κωνσταντίνος"
        ]
      ]
    }
  ],
  "word": "Κωστούλης"
}