"conwyddau" meaning in Welsh

{
  "forms": [
    {
      "form": "conwydden",
      "tags": [
        "singulative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "noun",
        "3": "singulative",
        "4": "conwydden",
        "g": "f"
      },
      "expansion": "conwyddau f (singulative conwydden)",
      "name": "head"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "conifers",
          "word": "conwydd"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "gonwyddau"
        },
        {
          "word": "nghonwyddau"
        },
        {
          "word": "chonwyddau"
        },
        {
          "sense": "Note",
          "word": "Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs."
        }
      ],
      "glosses": [
        "Alternative form of conwydd (“conifers”)"
      ],
      "id": "en-conwyddau-cy-noun-WE6comat",
      "links": [
        [
          "conwydd",
          "conwydd#Welsh"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "feminine"
      ]
    }
  ],
  "word": "conwyddau"
}

{
  "derived": [
    {
      "word": "gonwyddau"
    },
    {
      "word": "nghonwyddau"
    },
    {
      "word": "chonwyddau"
    },
    {
      "sense": "Note",
      "word": "Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs."
    }
  ],
  "forms": [
    {
      "form": "conwydden",
      "tags": [
        "singulative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "noun",
        "3": "singulative",
        "4": "conwydden",
        "g": "f"
      },
      "expansion": "conwyddau f (singulative conwydden)",
      "name": "head"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "conifers",
          "word": "conwydd"
        }
      ],
      "categories": [
        "Welsh entries with incorrect language header",
        "Welsh feminine nouns",
        "Welsh lemmas",
        "Welsh nouns"
      ],
      "glosses": [
        "Alternative form of conwydd (“conifers”)"
      ],
      "links": [
        [
          "conwydd",
          "conwydd#Welsh"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "feminine"
      ]
    }
  ],
  "word": "conwyddau"
}