"haidd" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "cel-pro",
        "3": "*sasyos"
      },
      "expansion": "Proto-Celtic *sasyos",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Celtic *sasyos.",
  "forms": [
    {
      "form": "heidden",
      "tags": [
        "singulative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m-p",
        "2": "heidden"
      },
      "expansion": "haidd m (collective, singulative heidden, not mutable)",
      "name": "cy-noun"
    }
  ],
  "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": "Grains",
          "orig": "cy:Grains",
          "parents": [
            "Foods",
            "Grasses",
            "Eating",
            "Food and drink",
            "Commelinids",
            "Human behaviour",
            "All topics",
            "Plants",
            "Human",
            "Fundamental",
            "Lifeforms",
            "Life",
            "Nature"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "cy",
          "name": "Hordeeae tribe grasses",
          "orig": "cy:Hordeeae tribe grasses",
          "parents": [
            "Grasses",
            "Commelinids",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "sense": "Cereals",
          "word": "ŷd"
        },
        {
          "word": "ceirch"
        },
        {
          "word": "gwenith"
        },
        {
          "word": "indrawn"
        },
        {
          "word": "india-corn"
        },
        {
          "word": "miled"
        },
        {
          "word": "reis"
        },
        {
          "word": "rhyg"
        },
        {
          "word": "rhygwenith"
        },
        {
          "word": "sbelt"
        },
        {
          "word": "sorgwm"
        }
      ],
      "derived": [
        {
          "english": "wood barley",
          "word": "heiddwellt"
        }
      ],
      "glosses": [
        "barley"
      ],
      "id": "en-haidd-cy-noun-16nq0LFc",
      "links": [
        [
          "barley",
          "barley"
        ]
      ],
      "synonyms": [
        {
          "word": "barlys"
        }
      ],
      "tags": [
        "collective",
        "masculine",
        "not-mutable"
      ],
      "wikipedia": [
        "cy:haidd"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/hai̯ð/"
    },
    {
      "rhymes": "-ai̯ð"
    }
  ],
  "word": "haidd"
}

{
  "coordinate_terms": [
    {
      "sense": "Cereals",
      "word": "ŷd"
    },
    {
      "word": "ceirch"
    },
    {
      "word": "gwenith"
    },
    {
      "word": "indrawn"
    },
    {
      "word": "india-corn"
    },
    {
      "word": "miled"
    },
    {
      "word": "reis"
    },
    {
      "word": "rhyg"
    },
    {
      "word": "rhygwenith"
    },
    {
      "word": "sbelt"
    },
    {
      "word": "sorgwm"
    }
  ],
  "derived": [
    {
      "english": "wood barley",
      "word": "heiddwellt"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "cel-pro",
        "3": "*sasyos"
      },
      "expansion": "Proto-Celtic *sasyos",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Celtic *sasyos.",
  "forms": [
    {
      "form": "heidden",
      "tags": [
        "singulative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m-p",
        "2": "heidden"
      },
      "expansion": "haidd m (collective, singulative heidden, not mutable)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Rhymes:Welsh/ai̯ð",
        "Rhymes:Welsh/ai̯ð/1 syllable",
        "Welsh collective nouns",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh non-mutable terms",
        "Welsh nouns",
        "Welsh nouns with red links in their headword lines",
        "Welsh terms derived from Proto-Celtic",
        "Welsh terms inherited from Proto-Celtic",
        "cy:Grains",
        "cy:Hordeeae tribe grasses"
      ],
      "glosses": [
        "barley"
      ],
      "links": [
        [
          "barley",
          "barley"
        ]
      ],
      "synonyms": [
        {
          "word": "barlys"
        }
      ],
      "tags": [
        "collective",
        "masculine",
        "not-mutable"
      ],
      "wikipedia": [
        "cy:haidd"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/hai̯ð/"
    },
    {
      "rhymes": "-ai̯ð"
    }
  ],
  "word": "haidd"
}