"gwehydd mygydog" meaning in Welsh

{
  "forms": [
    {
      "form": "gwehyddion mygydog",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "gwehydd mygydog",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "wehydd mygydog",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft"
      ]
    },
    {
      "form": "ngwehydd mygydog",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-nasal"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m",
        "pl": "gwehyddion mygydog"
      },
      "expansion": "gwehydd mygydog m (plural gwehyddion mygydog)",
      "name": "cy-noun"
    }
  ],
  "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": "lifeform",
          "langcode": "cy",
          "name": "Weaverbirds",
          "orig": "cy:Weaverbirds",
          "parents": [
            "Perching birds",
            "Birds",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "southern masked weaver, African masked weaver (Ploceus velatus)"
      ],
      "id": "en-gwehydd_mygydog-cy-noun-cDvoJPLp",
      "links": [
        [
          "southern masked weaver",
          "southern masked weaver"
        ]
      ],
      "tags": [
        "masculine"
      ],
      "wikipedia": [
        "cy:gwehydd mygydog"
      ]
    }
  ],
  "word": "gwehydd mygydog"
}

{
  "forms": [
    {
      "form": "gwehyddion mygydog",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "gwehydd mygydog",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "wehydd mygydog",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft"
      ]
    },
    {
      "form": "ngwehydd mygydog",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-nasal"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m",
        "pl": "gwehyddion mygydog"
      },
      "expansion": "gwehydd mygydog m (plural gwehyddion mygydog)",
      "name": "cy-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Entries missing English vernacular names of taxa",
        "Entries using missing taxonomic name (species)",
        "Welsh countable nouns",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh multiword terms",
        "Welsh nouns",
        "cy:Weaverbirds"
      ],
      "glosses": [
        "southern masked weaver, African masked weaver (Ploceus velatus)"
      ],
      "links": [
        [
          "southern masked weaver",
          "southern masked weaver"
        ]
      ],
      "tags": [
        "masculine"
      ],
      "wikipedia": [
        "cy:gwehydd mygydog"
      ]
    }
  ],
  "word": "gwehydd mygydog"
}

{
  "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: wehydd mygydog, style: padding-bottom:4px;////NodeKind.TABLE_CELL",
  "path": [
    "gwehydd mygydog"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "gwehydd mygydog",
  "trace": ""
}

{
  "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: ngwehydd mygydog, style: padding-bottom:4px;////NodeKind.TABLE_CELL",
  "path": [
    "gwehydd mygydog"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "gwehydd mygydog",
  "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": [
    "gwehydd mygydog"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "gwehydd mygydog",
  "trace": ""
}

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