"rhafnwydd bythwyrdd" meaning in Welsh

{
  "forms": [
    {
      "form": "rhafnwydden fythwyrdd",
      "tags": [
        "singulative"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "rhafnwydd bythwyrdd",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "rafnwydd bythwyrdd",
      "source": "mutation",
      "tags": [
        "soft"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f-p",
        "2": "rhafnwydden fythwyrdd"
      },
      "expansion": "rhafnwydd bythwyrdd f (collective, singulative rhafnwydden fythwyrdd)",
      "name": "cy-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "cy",
          "name": "Buckthorn family plants",
          "orig": "cy:Buckthorn family plants",
          "parents": [
            "Rosales order plants",
            "Shrubs",
            "Trees",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Mediterranean buckthorn (Rhamnus alaternus)"
      ],
      "id": "en-rhafnwydd_bythwyrdd-cy-noun-i252m9YE",
      "links": [
        [
          "Rhamnus alaternus",
          "Rhamnus alaternus#Translingual"
        ]
      ],
      "tags": [
        "collective",
        "feminine"
      ]
    }
  ],
  "word": "rhafnwydd bythwyrdd"
}

{
  "forms": [
    {
      "form": "rhafnwydden fythwyrdd",
      "tags": [
        "singulative"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "rhafnwydd bythwyrdd",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "rafnwydd bythwyrdd",
      "source": "mutation",
      "tags": [
        "soft"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f-p",
        "2": "rhafnwydden fythwyrdd"
      },
      "expansion": "rhafnwydd bythwyrdd f (collective, singulative rhafnwydden fythwyrdd)",
      "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",
        "Pages with 1 entry",
        "Pages with entries",
        "Welsh collective nouns",
        "Welsh entries with incorrect language header",
        "Welsh feminine nouns",
        "Welsh lemmas",
        "Welsh multiword terms",
        "Welsh nouns",
        "Welsh nouns with red links in their headword lines",
        "cy:Buckthorn family plants"
      ],
      "glosses": [
        "Mediterranean buckthorn (Rhamnus alaternus)"
      ],
      "links": [
        [
          "Rhamnus alaternus",
          "Rhamnus alaternus#Translingual"
        ]
      ],
      "tags": [
        "collective",
        "feminine"
      ]
    }
  ],
  "word": "rhafnwydd bythwyrdd"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </small>",
  "path": [
    "rhafnwydd bythwyrdd"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "rhafnwydd bythwyrdd",
  "trace": ""
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: rhafnwydd bythwyrdd/Welsh 'radical' base_tags=set()",
  "path": [
    "rhafnwydd bythwyrdd"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "rhafnwydd bythwyrdd",
  "trace": ""
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: rhafnwydd bythwyrdd/Welsh 'nasal' base_tags={'error-unrecognized-form', 'soft'}",
  "path": [
    "rhafnwydd bythwyrdd"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "rhafnwydd bythwyrdd",
  "trace": ""
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: rhafnwydd bythwyrdd/Welsh 'aspirate' base_tags={'error-unrecognized-form', 'soft'}",
  "path": [
    "rhafnwydd bythwyrdd"
  ],
  "section": "Welsh",
  "subsection": "noun",
  "title": "rhafnwydd bythwyrdd",
  "trace": ""
}