"īstākajam" meaning in Latvian

{
  "head_templates": [
    {
      "args": {
        "1": "lv",
        "2": "adjective form"
      },
      "expansion": "īstākajam",
      "name": "head"
    }
  ],
  "lang": "Latvian",
  "lang_code": "lv",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latvian 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"
        }
      ],
      "form_of": [
        {
          "word": "īstākais"
        }
      ],
      "glosses": [
        "dative singular masculine of īstākais"
      ],
      "id": "en-īstākajam-lv-adj-38XNgUAD",
      "links": [
        [
          "īstākais",
          "īstākais#Latvian"
        ]
      ],
      "tags": [
        "dative",
        "form-of",
        "masculine",
        "singular"
      ]
    }
  ],
  "word": "īstākajam"
}

{
  "head_templates": [
    {
      "args": {
        "1": "lv",
        "2": "adjective form"
      },
      "expansion": "īstākajam",
      "name": "head"
    }
  ],
  "lang": "Latvian",
  "lang_code": "lv",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Latvian adjective forms",
        "Latvian entries with incorrect language header",
        "Latvian non-lemma forms",
        "Pages with 1 entry"
      ],
      "form_of": [
        {
          "word": "īstākais"
        }
      ],
      "glosses": [
        "dative singular masculine of īstākais"
      ],
      "links": [
        [
          "īstākais",
          "īstākais#Latvian"
        ]
      ],
      "tags": [
        "dative",
        "form-of",
        "masculine",
        "singular"
      ]
    }
  ],
  "word": "īstākajam"
}