"疸" meaning in Vietnamese

{
  "forms": [
    {
      "form": "疸: Nôm readings: đơn",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "đảm",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "đớn",
      "tags": [
        "canonical"
      ]
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Vietnamese Nom",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "roman": "đau đớn",
          "word": "𤴬疸"
        }
      ],
      "id": "en-疸-vi-character-47DEQpj8",
      "raw_tags": [
        "han"
      ],
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "word": "疸"
}

{
  "derived": [
    {
      "roman": "đau đớn",
      "word": "𤴬疸"
    }
  ],
  "forms": [
    {
      "form": "疸: Nôm readings: đơn",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "đảm",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "đớn",
      "tags": [
        "canonical"
      ]
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "character",
  "senses": [
    {
      "categories": [
        "Vietnamese Han characters",
        "Vietnamese Nom",
        "Vietnamese lemmas"
      ],
      "raw_tags": [
        "han"
      ],
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "word": "疸"
}

{
  "called_from": "form_descriptions/1147",
  "msg": "suspicious related form tags ['canonical']: '疸: Nôm readings: đơn' in '疸: Nôm readings: đơn, đảm, đớn'",
  "path": [
    "疸"
  ],
  "section": "Vietnamese",
  "subsection": "han character",
  "title": "疸",
  "trace": ""
}