"madfallod dŵr" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "madfall ddŵr",
        "3": "-od"
      },
      "expansion": "madfall ddŵr + -od",
      "name": "af"
    }
  ],
  "etymology_text": "From madfall ddŵr + -od.",
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "madfallod dŵr",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "fadfallod dŵr",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "noun form"
      },
      "expansion": "madfallod dŵr",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh terms suffixed with -od",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "newt",
          "word": "madfall ddŵr"
        }
      ],
      "glosses": [
        "plural of madfall ddŵr (“newt”)"
      ],
      "id": "en-madfallod_dŵr-cy-noun-Ugw4r7gp",
      "links": [
        [
          "madfall ddŵr",
          "madfall ddŵr#Welsh"
        ]
      ],
      "tags": [
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/madˌvaɬɔd ˈduːr/"
    }
  ],
  "word": "madfallod dŵr"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "madfall ddŵr",
        "3": "-od"
      },
      "expansion": "madfall ddŵr + -od",
      "name": "af"
    }
  ],
  "etymology_text": "From madfall ddŵr + -od.",
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "madfallod dŵr",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "fadfallod dŵr",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "noun form"
      },
      "expansion": "madfallod dŵr",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Welsh entries with incorrect language header",
        "Welsh non-lemma forms",
        "Welsh noun forms",
        "Welsh terms suffixed with -od",
        "Welsh terms with IPA pronunciation"
      ],
      "form_of": [
        {
          "extra": "newt",
          "word": "madfall ddŵr"
        }
      ],
      "glosses": [
        "plural of madfall ddŵr (“newt”)"
      ],
      "links": [
        [
          "madfall ddŵr",
          "madfall ddŵr#Welsh"
        ]
      ],
      "tags": [
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/madˌvaɬɔd ˈduːr/"
    }
  ],
  "word": "madfallod dŵr"
}

{
  "called_from": "inflection/2522",
  "msg": "rejected heuristic header: table cell identified as header based on style, BUT the cleaned text is not in LANGUAGES_WITH_CELLS_AS_HEADERS[Welsh]; cleaned text: fadfallod dŵr, style: padding-bottom:4px;////NodeKind.TABLE_CELL",
  "path": [
    "madfallod dŵr"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "madfallod dŵr",
  "trace": ""
}

{
  "called_from": "inflection/2530",
  "msg": "accepted heuristic header: table cell identified as header based on style, AND the cleaned text is in LANGUAGES_WITH_CELLS_AS_HEADERS[Welsh]; cleaned text: unchanged, style: padding-bottom:4px;////NodeKind.TABLE_CELL",
  "path": [
    "madfallod dŵr"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "madfallod dŵr",
  "trace": ""
}

{
  "called_from": "inflection/2530",
  "msg": "accepted heuristic header: table cell identified as header based on style, AND the cleaned text is in LANGUAGES_WITH_CELLS_AS_HEADERS[Welsh]; cleaned text: unchanged, style: padding-bottom:4px;////NodeKind.TABLE_CELL",
  "path": [
    "madfallod dŵr"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "madfallod dŵr",
  "trace": ""
}

{
  "called_from": "inflection/735",
  "msg": "inflection table: unrecognized header: 'unchanged'",
  "path": [
    "madfallod dŵr"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "madfallod dŵr",
  "trace": ""
}

{
  "called_from": "inflection/735",
  "msg": "inflection table: unrecognized header: 'unchanged'",
  "path": [
    "madfallod dŵr"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "madfallod dŵr",
  "trace": ""
}