"なく" meaning in 古典日本語

{
  "etymology_texts": [
    "打消の助動詞「ず」の未然形 + 接尾辞「く」"
  ],
  "forms": [
    {
      "form": "泣く"
    },
    {
      "form": "鳴く"
    }
  ],
  "lang": "古典日本語",
  "lang_code": "ojp",
  "pos": "verb",
  "pos_title": "動詞",
  "senses": [
    {
      "glosses": [
        "（人が）泣く。"
      ],
      "id": "ja-なく-ojp-verb-ajbJnNfc"
    },
    {
      "glosses": [
        "（鳥・虫などが）鳴く。"
      ],
      "id": "ja-なく-ojp-verb-5ulLRDZQ"
    }
  ],
  "word": "なく"
}

{
  "categories": [
    {
      "kind": "other",
      "name": "古典日本語_上代語",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "打消の助動詞「ず」の未然形 + 接尾辞「く」"
  ],
  "forms": [
    {
      "form": "泣く"
    },
    {
      "form": "鳴く"
    }
  ],
  "lang": "古典日本語",
  "lang_code": "ojp",
  "pos": "verb",
  "pos_title": "動詞",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "古典日本語 上代東国方言",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "泣かせる。"
      ],
      "id": "ja-なく-ojp-verb-1w9mP3HW",
      "raw_tags": [
        "上代東国方言"
      ]
    }
  ],
  "word": "なく"
}

{
  "etymology_texts": [
    "打消の助動詞「ず」の未然形 + 接尾辞「く」"
  ],
  "forms": [
    {
      "form": "泣く"
    },
    {
      "form": "鳴く"
    }
  ],
  "lang": "古典日本語",
  "lang_code": "ojp",
  "pos": "verb",
  "pos_title": "動詞",
  "senses": [
    {
      "glosses": [
        "（人が）泣く。"
      ]
    },
    {
      "glosses": [
        "（鳥・虫などが）鳴く。"
      ]
    }
  ],
  "word": "なく"
}

{
  "categories": [
    "古典日本語_上代語"
  ],
  "etymology_texts": [
    "打消の助動詞「ず」の未然形 + 接尾辞「く」"
  ],
  "forms": [
    {
      "form": "泣く"
    },
    {
      "form": "鳴く"
    }
  ],
  "lang": "古典日本語",
  "lang_code": "ojp",
  "pos": "verb",
  "pos_title": "動詞",
  "senses": [
    {
      "categories": [
        "古典日本語 上代東国方言"
      ],
      "glosses": [
        "泣かせる。"
      ],
      "raw_tags": [
        "上代東国方言"
      ]
    }
  ],
  "word": "なく"
}