"wyth deg" meaning in Welsh

{
  "forms": [
    {
      "form": "wythdegau",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "wyth deg",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "hwyth deg",
      "source": "mutation",
      "tags": [
        "mutation",
        "prothesis-h"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "numeral",
        "3": "plural",
        "4": "wythdegau"
      },
      "expansion": "wyth deg (plural wythdegau)",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "Welsh cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "eighty"
      ],
      "id": "en-wyth_deg-cy-num-Dbw0B6cI",
      "links": [
        [
          "cardinal number",
          "cardinal number"
        ],
        [
          "eighty",
          "eighty"
        ]
      ],
      "qualifier": "decimal",
      "raw_glosses": [
        "(cardinal number, decimal) eighty"
      ],
      "synonyms": [
        {
          "word": "pedwar ugain"
        }
      ],
      "tags": [
        "cardinal",
        "numeral"
      ]
    },
    {
      "categories": [
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Welsh links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "(the/one's) eighties"
      ],
      "id": "en-wyth_deg-cy-num-OJVNGIKe",
      "links": [
        [
          "eighties",
          "eighties"
        ]
      ],
      "raw_glosses": [
        "(in the plural) (the/one's) eighties"
      ],
      "tags": [
        "in-plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈuɨ̯θdɛɡ/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˈui̯θdɛɡ/",
      "tags": [
        "South-Wales"
      ]
    }
  ],
  "word": "wyth deg"
}

{
  "categories": [
    "Welsh entries with incorrect language header",
    "Welsh lemmas",
    "Welsh links with redundant alt parameters",
    "Welsh multiword terms",
    "Welsh numerals",
    "Welsh terms with IPA pronunciation"
  ],
  "forms": [
    {
      "form": "wythdegau",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "wyth deg",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "hwyth deg",
      "source": "mutation",
      "tags": [
        "mutation",
        "prothesis-h"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "numeral",
        "3": "plural",
        "4": "wythdegau"
      },
      "expansion": "wyth deg (plural wythdegau)",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Welsh cardinal numbers"
      ],
      "glosses": [
        "eighty"
      ],
      "links": [
        [
          "cardinal number",
          "cardinal number"
        ],
        [
          "eighty",
          "eighty"
        ]
      ],
      "qualifier": "decimal",
      "raw_glosses": [
        "(cardinal number, decimal) eighty"
      ],
      "synonyms": [
        {
          "word": "pedwar ugain"
        }
      ],
      "tags": [
        "cardinal",
        "numeral"
      ]
    },
    {
      "glosses": [
        "(the/one's) eighties"
      ],
      "links": [
        [
          "eighties",
          "eighties"
        ]
      ],
      "raw_glosses": [
        "(in the plural) (the/one's) eighties"
      ],
      "tags": [
        "in-plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈuɨ̯θdɛɡ/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˈui̯θdɛɡ/",
      "tags": [
        "South-Wales"
      ]
    }
  ],
  "word": "wyth deg"
}