"νηστικής" meaning in Greek

{
  "forms": [
    {
      "form": "nistikís",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "adjective forms",
        "cat2": "",
        "head": "",
        "sort": ""
      },
      "expansion": "νηστικής • (nistikís)",
      "name": "head"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "nistikós",
          "word": "νηστικός"
        }
      ],
      "glosses": [
        "genitive feminine singular of νηστικός (nistikós)"
      ],
      "id": "en-νηστικής-el-adj-rKt4N1-K",
      "links": [
        [
          "νηστικός",
          "νηστικός#Greek"
        ]
      ],
      "synonyms": [
        {
          "roman": "nistikiás",
          "word": "νηστικιάς"
        }
      ],
      "tags": [
        "feminine",
        "form-of",
        "genitive",
        "singular"
      ]
    }
  ],
  "word": "νηστικής"
}

{
  "forms": [
    {
      "form": "nistikís",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "adjective forms",
        "cat2": "",
        "head": "",
        "sort": ""
      },
      "expansion": "νηστικής • (nistikís)",
      "name": "head"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Greek adjective forms",
        "Greek entries with incorrect language header",
        "Greek non-lemma forms"
      ],
      "form_of": [
        {
          "extra": "nistikós",
          "word": "νηστικός"
        }
      ],
      "glosses": [
        "genitive feminine singular of νηστικός (nistikós)"
      ],
      "links": [
        [
          "νηστικός",
          "νηστικός#Greek"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "genitive",
        "singular"
      ]
    }
  ],
  "synonyms": [
    {
      "roman": "nistikiás",
      "word": "νηστικιάς"
    }
  ],
  "word": "νηστικής"
}