"にがむ" meaning in 古典日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "古典日本語",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "「にがし」 + 接尾辞「む」"
  ],
  "forms": [
    {
      "form": "苦む"
    }
  ],
  "lang": "古典日本語",
  "lang_code": "ojp",
  "pos": "verb",
  "pos_title": "動詞",
  "senses": [
    {
      "glosses": [
        "不愉快な顔をする。"
      ],
      "id": "ja-にがむ-ojp-verb-bLdNBL9L",
      "ruby": [
        [
          "顔",
          "かお"
        ]
      ]
    }
  ],
  "word": "にがむ"
}

{
  "categories": [
    "古典日本語"
  ],
  "etymology_texts": [
    "「にがし」 + 接尾辞「む」"
  ],
  "forms": [
    {
      "form": "苦む"
    }
  ],
  "lang": "古典日本語",
  "lang_code": "ojp",
  "pos": "verb",
  "pos_title": "動詞",
  "senses": [
    {
      "glosses": [
        "不愉快な顔をする。"
      ],
      "ruby": [
        [
          "顔",
          "かお"
        ]
      ]
    }
  ],
  "word": "にがむ"
}