"un ar hugain" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "un",
        "3": "ar",
        "4": "ugain",
        "t1": "one",
        "t2": "on",
        "t3": "twenty"
      },
      "expansion": "un (“one”) + ar (“on”) + ugain (“twenty”)",
      "name": "com"
    }
  ],
  "etymology_text": "From un (“one”) + ar (“on”) + ugain (“twenty”).",
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "un ar hugain",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "hun ar hugain",
      "source": "mutation",
      "tags": [
        "mutation",
        "prothesis-h"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "numeral"
      },
      "expansion": "un ar hugain",
      "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"
        },
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "twenty-one"
      ],
      "id": "en-un_ar_hugain-cy-num-pp7bSJ9O",
      "links": [
        [
          "cardinal number",
          "cardinal number"
        ],
        [
          "twenty-one",
          "twenty-one"
        ]
      ],
      "raw_glosses": [
        "(cardinal number) twenty-one"
      ],
      "synonyms": [
        {
          "word": "dau ddeg un"
        }
      ],
      "tags": [
        "cardinal",
        "numeral"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌɨːn ar ˈhɪɡai̯n/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˌiːn ar ˈhiːɡai̯n/",
      "tags": [
        "South-Wales",
        "colloquial",
        "standard"
      ]
    },
    {
      "ipa": "/ˌiːn ar ˈhɪɡai̯n/",
      "tags": [
        "South-Wales",
        "colloquial",
        "standard"
      ]
    },
    {
      "ipa": "/ˌiːn ar ˈhiːɡɛn/",
      "tags": [
        "South-Wales",
        "colloquial"
      ]
    },
    {
      "ipa": "/ˌiːn ar ˈhɪɡɛn/",
      "tags": [
        "South-Wales",
        "colloquial"
      ]
    }
  ],
  "word": "un ar hugain"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "un",
        "3": "ar",
        "4": "ugain",
        "t1": "one",
        "t2": "on",
        "t3": "twenty"
      },
      "expansion": "un (“one”) + ar (“on”) + ugain (“twenty”)",
      "name": "com"
    }
  ],
  "etymology_text": "From un (“one”) + ar (“on”) + ugain (“twenty”).",
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "un ar hugain",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "hun ar hugain",
      "source": "mutation",
      "tags": [
        "mutation",
        "prothesis-h"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "numeral"
      },
      "expansion": "un ar hugain",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Welsh cardinal numbers",
        "Welsh compound terms",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh multiword terms",
        "Welsh numerals",
        "Welsh terms with IPA pronunciation"
      ],
      "glosses": [
        "twenty-one"
      ],
      "links": [
        [
          "cardinal number",
          "cardinal number"
        ],
        [
          "twenty-one",
          "twenty-one"
        ]
      ],
      "raw_glosses": [
        "(cardinal number) twenty-one"
      ],
      "synonyms": [
        {
          "word": "dau ddeg un"
        }
      ],
      "tags": [
        "cardinal",
        "numeral"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌɨːn ar ˈhɪɡai̯n/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˌiːn ar ˈhiːɡai̯n/",
      "tags": [
        "South-Wales",
        "colloquial",
        "standard"
      ]
    },
    {
      "ipa": "/ˌiːn ar ˈhɪɡai̯n/",
      "tags": [
        "South-Wales",
        "colloquial",
        "standard"
      ]
    },
    {
      "ipa": "/ˌiːn ar ˈhiːɡɛn/",
      "tags": [
        "South-Wales",
        "colloquial"
      ]
    },
    {
      "ipa": "/ˌiːn ar ˈhɪɡɛn/",
      "tags": [
        "South-Wales",
        "colloquial"
      ]
    }
  ],
  "word": "un ar hugain"
}